US20080020874A1 - Structure of softball - Google Patents
Structure of softball Download PDFInfo
- Publication number
- US20080020874A1 US20080020874A1 US11/831,965 US83196507A US2008020874A1 US 20080020874 A1 US20080020874 A1 US 20080020874A1 US 83196507 A US83196507 A US 83196507A US 2008020874 A1 US2008020874 A1 US 2008020874A1
- Authority
- US
- United States
- Prior art keywords
- softball
- core
- cover
- separation layer
- yarns
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 238000000926 separation method Methods 0.000 claims abstract description 32
- 230000006835 compression Effects 0.000 claims abstract description 30
- 238000007906 compression Methods 0.000 claims abstract description 30
- 238000006073 displacement reaction Methods 0.000 claims abstract description 29
- 230000003139 buffering effect Effects 0.000 claims abstract description 17
- 239000000853 adhesive Substances 0.000 claims abstract description 13
- 230000001070 adhesive effect Effects 0.000 claims abstract description 13
- 239000004814 polyurethane Substances 0.000 claims abstract description 10
- 229920002635 polyurethane Polymers 0.000 claims abstract description 9
- 238000002791 soaking Methods 0.000 claims abstract description 7
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 239000005060 rubber Substances 0.000 claims description 2
- 239000007779 soft material Substances 0.000 claims description 2
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 claims 1
- 239000005038 ethylene vinyl acetate Substances 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 230000009545 invasion Effects 0.000 abstract description 4
- 239000010985 leather Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/02—Special cores
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B39/00—Hollow non-inflatable balls, i.e. having no valves
- A63B39/06—Special coverings
- A63B39/08—Special coverings made of two halves
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2102/00—Application of clubs, bats, rackets or the like to the sporting activity ; particular sports involving the use of balls and clubs, bats, rackets, or the like
- A63B2102/18—Baseball, rounders or similar games
- A63B2102/182—Softball
Definitions
- the present invention relates to a softball, and in particular to a softball having a core that is protected against humidity and that has enhanced durability.
- FIG. 1 of the attached drawings A conventional softball that is currently used is shown in FIG. 1 of the attached drawings and generally designated at 1 , comprising a core 11 and a cover 12 .
- the core 11 is made of cork or foamed substance, such as polyurethane (PU).
- the cover 12 comprises a soft skin and is fixed to and wraps the core 11 by stitching to form the softball 1 .
- the softball 1 must satisfy different specifications, such as the specification stipulated by ASA and USSSA.
- compression displacement of the softball it is required that the compression displacement of the softball must be no higher than 375 lbs, 400 lbs, and 500 lbs, set in different specifications. To be sold in the market, all the softballs must be manufactured to meet the specifications.
- the softball 1 Since the softball 1 is comprised of a core 11 and a cover 12 , in respect of the requirement of 375 lbs compression displacement, the softball 1 must be made in such a way that the core 11 can have a compression displacement not greater than around 375 lbs in order to prevent the overall compression displacement of the softball 1 become over-specification, disqualifying the ball. Under this situation, when the ball 1 is put in use, the ball 1 is often subjected to a hitting force greater than 375 lbs. Such a force is transmitted through the cover 12 to the core 11 , and leads to damage of the core 11 . When the core 11 is damaged, the ball 1 can no longer be qualified for use. As a consequence of such a situation, the conventional softball has a poor durability.
- the softball 1 when the softball 1 is used in a raining day or is put in a high humidity environment, rain water or humidity will invades into inside the softball 1 by penetrating through the cover 12 , making the core 11 wet.
- the core 11 is of high humidity absorption so that the cover 11 will absorb a great amount of water, which substantially increases the weight of the core 11 and reduces the compression displacement and bouncing coefficient of the softball 11 , thereby disqualifying the ball.
- a softball 1 with a wetted core 11 is considered damaged and must be disposed of.
- the conventional softball 1 cannot be deposited or stored in a high humidity environment for water molecules or humidity will penetrate through the cover 12 and invade into inside the softball 1 , making the core 11 wetted. Again, the wetted core 11 makes the compression displacement and bouncing coefficient of the softball 1 substantially reduced, and eventually turning the softball 1 into a disqualified one. Thus, it is a major challenge of the softball manufacturing industry to protect a softball from invasion and damage caused by humidity and water.
- the primary purpose of the present invention is to provide a softball, which comprises a core, a separation layer, and a cover.
- the core is made of polyurethane.
- the separation layer is formed by wrapping, in a laminated manner, yarns around the core and soaking the wrapping yarns in adhesives.
- the cover is made of soft skin.
- the separation layer that is arranged between the core and the cover and is formed by wrapping the yarns in a laminated manner around the core, followed by soaking the yarns in adhesives so that the separation layer features waterproofness and resistance against humidity, by which invasion of water or humidity into the core, which leads to change of the compression displacement of the softball and eventually causes failure/damage of the softball, can be prevented.
- the durability and performance of the softball can be enhanced
- Another objective of the present invention is to provide a softball comprising a core, a separation layer and a cover.
- the core is made of polyurethane that has high compression displacement.
- the separation layer is formed by wrapping, in a laminated manner, yarns around the core and soaking the wrapping yarns in adhesives.
- the cover is made of soft skin and comprises a buffering layer formed on an inside surface thereof.
- FIG. 1 is a cross-sectional view of a conventional softball
- FIG. 2 is a perspective view, partially broken, of a softball constructed in accordance with the present invention
- FIG. 3 is a cross-sectional view of a core and a separation layer of the softball in accordance with the present invention.
- FIG. 4 is a cross-sectional view of the softball in accordance with the present invention.
- a softball constructed in accordance with the present invention comprises a core 3 , a separation layer 4 , a cover 5 and a buffering layer 6 arranged on an inner surface of the cover 5 .
- the core 3 is made of polyurethane. This provides the core 3 with better performance of compression displacement and the softball 2 can be made matching the specification of compression displacement or exceeding the specification of the compression displacement.
- the separation layer 4 is formed on windings of yarns 41 wrapping around an outer circumference of the core 3 to provide a layer of wrapping yarns of a desired thickness.
- the yarns 41 can be made of polyester fibers, which help improving waterproofness of the separation layer 4 .
- the core 3 with the yarn layer can be soaked in adhesives to completely fill gaps between the yarns with the adhesives.
- the adhesiveness of the adhesives fixes the separation layer 4 and the core 3 and the cover 5 tightly together to thereby integrate the separation layer 4 and the core 3 together. Further, the adhesives that fill into the gaps between the yarns provide the separation layer 4 with excellent waterproofness. As such, the separation layer 4 functions to protect the core 3 from being invaded by humidity or water.
- the cover 5 can be made of natural leather, composite leather, PVC (Poly Vinyl Chloride) PU or other synthetic materials and is stitched to surround the separation layer 4 and the core 3 .
- PVC Poly Vinyl Chloride
- the buffering layer 6 is made of a soft material, such as rubber, PU (polyurethane) foams, PE (polyethylene), and EVA, and is arranged on an inner side of the cover 5 .
- the thickness range of the buffering layer 6 is 1 to 2 mm, preferably 1.5 mm. Further, the buffering layer 6 preferably has a hardness of 40 Shore A.
- polyurethane is subjected to foaming to make the core 3 , and this gives the core 3 a compression displacement that meets the requirement of the specifications, or the core 3 can be made exceeding the required compression displacement.
- Polyester yarns are then wrapped around, in a laminated manner, an outer circumference of the core 3 .
- the core 3 that is wrapped by the yarn layer is soaked in the adhesives to form the separation layer 4 around the outer circumference of the core 3 .
- the cover 5 that is provided at an inner side thereof with the buffering layer 6 , is stitched to attach to an outer surface of the separation layer 4 , whereby the cover 5 wraps the separation layer 4 and the core 3 therein to thereby complete the manufacturing of the softball 2 , which contains, from inside to outside, the core 3 , the separation layer 4 , the buffering layer 6 , and the cover 5 .
- the softball 2 in accordance with the present invention at least has the following advantages:
- the separation layer 4 is formed between the cover 5 and the core 3 .
- the separation layer 4 is made of wrapping yarns 41 soaked in adhesives and thus, has improved waterproofness. Therefore, when the softball 2 of the present invention is put in a high humidity environment, or when the softball 2 of the present invention is put in contact with water or liquids, the separation layers 41 functions to isolate the core 3 from the invasion of the humidity or liquids, so that the life span of the softball 2 can be extended and the performance enhanced. Further, since the separation layer 4 is formed by soaking the wrapping yarns 41 in the adhesives, the softball 2 , upon hit, gives off a sharp sound. This enhances the performance of the softball 2 .
- the cover 5 is provided at the inner side thereof with the buffering layer 6 .
- the core 3 in accordance with the present invention can be made with a compression displacement of 400 lbs.
- the core 3 in accordance with the present invention can be made with a compression displacement of 450 lbs.
- the buffering layer 6 provides means of counterbalance by which the overall compression displacement of the softball 2 can be eventually set to the desired value.
- the increase of the compression displacement of the core 3 allows the softball 2 made in accordance with the present invention durable. This is simply because that when the softball 2 is subjected to a hitting pressure of 430 lbs, the core 3 that has a higher compression displacement of 450 lbs can effectively take the 430 lbs hitting force without being damaged. Consequently, the softball 2 of the present invention is more durable.
- the buffering layer 6 that is arranged on the inside surface of the cover 5 allows the core 3 to be made in an over-specification manner, and this not only improves the durability of the softball 2 but also enhances the performance of the softball 2 due to the increased compression displacement of the core 3 , which provides the core 3 with higher hardness, so that when the softball 2 is hit, a sharp sound is given off and the softball 2 flies a longer distance.
- the buffering layer 6 that is arranged on the inside surface of the cover 5 provides cushioning between a high-speed flying softball 2 and an individual when the softball 2 is thrown or hit to move toward the individual, whereby damage to the person by the flying softball 2 is alleviated and safety is enhanced.
Abstract
A softball includes a core, a separation layer, and a cover. The core is made of polyurethane that has high compression displacement. The separation layer is formed by wrapping, in a laminated manner, yarns around the core and soaking the wrapping yarns in adhesives. The cover is made of soft skin and includes a buffering layer formed on an inside surface thereof. When the durability of the softball is improved by increasing the compression displacement of the core, the buffering layer provided on the inside surface of the cover provides counterbalance of the overall compression displacement of the softball in order to meet the requirement of the softball specifications. The separation layer that is arranged between the core and the cover and is formed by wrapping the yarns in a laminated manner around the core, followed by soaking the yarns in adhesives so that the separation layer features waterproofness and resistance against humidity, by which invasion of water or humidity into the core, which leads to change of the compression displacement of the softball and eventually causes failure/damage of the softball, can be prevented. Thus, the durability and performance of the softball can be enhanced.
Description
- This is a continuation-in-part of the co-pending patent application Ser. No. 11/327,468, filed Jan. 9, 2006.
- (a) Technical Field of the Invention
- The present invention relates to a softball, and in particular to a softball having a core that is protected against humidity and that has enhanced durability.
- (b) Description of the Prior Art
- Once softballs meet the requirements of compression by all softball associations they also must meet players acceptance. The crack sound must be prominent when the player hits the ball off the bat. If batted ball has a soft, mushy or thud sound it will not be accepted by players.
- A conventional softball that is currently used is shown in
FIG. 1 of the attached drawings and generally designated at 1, comprising acore 11 and acover 12. Thecore 11 is made of cork or foamed substance, such as polyurethane (PU). Thecover 12 comprises a soft skin and is fixed to and wraps thecore 11 by stitching to form the softball 1. In different applications, the softball 1 must satisfy different specifications, such as the specification stipulated by ASA and USSSA. In respect of compression displacement of the softball, it is required that the compression displacement of the softball must be no higher than 375 lbs, 400 lbs, and 500 lbs, set in different specifications. To be sold in the market, all the softballs must be manufactured to meet the specifications. Since the softball 1 is comprised of acore 11 and acover 12, in respect of the requirement of 375 lbs compression displacement, the softball 1 must be made in such a way that thecore 11 can have a compression displacement not greater than around 375 lbs in order to prevent the overall compression displacement of the softball 1 become over-specification, disqualifying the ball. Under this situation, when the ball 1 is put in use, the ball 1 is often subjected to a hitting force greater than 375 lbs. Such a force is transmitted through thecover 12 to thecore 11, and leads to damage of thecore 11. When thecore 11 is damaged, the ball 1 can no longer be qualified for use. As a consequence of such a situation, the conventional softball has a poor durability. Further, when the softball 1 is used in a raining day or is put in a high humidity environment, rain water or humidity will invades into inside the softball 1 by penetrating through thecover 12, making thecore 11 wet. Thecore 11 is of high humidity absorption so that thecover 11 will absorb a great amount of water, which substantially increases the weight of thecore 11 and reduces the compression displacement and bouncing coefficient of thesoftball 11, thereby disqualifying the ball. Thus, a softball 1 with a wettedcore 11 is considered damaged and must be disposed of. - Besides the drawback of being wetted, the conventional softball 1 cannot be deposited or stored in a high humidity environment for water molecules or humidity will penetrate through the
cover 12 and invade into inside the softball 1, making thecore 11 wetted. Again, thewetted core 11 makes the compression displacement and bouncing coefficient of the softball 1 substantially reduced, and eventually turning the softball 1 into a disqualified one. Thus, it is a major challenge of the softball manufacturing industry to protect a softball from invasion and damage caused by humidity and water. - The primary purpose of the present invention is to provide a softball, which comprises a core, a separation layer, and a cover. The core is made of polyurethane. The separation layer is formed by wrapping, in a laminated manner, yarns around the core and soaking the wrapping yarns in adhesives. The cover is made of soft skin. The separation layer that is arranged between the core and the cover and is formed by wrapping the yarns in a laminated manner around the core, followed by soaking the yarns in adhesives so that the separation layer features waterproofness and resistance against humidity, by which invasion of water or humidity into the core, which leads to change of the compression displacement of the softball and eventually causes failure/damage of the softball, can be prevented. Thus, the durability and performance of the softball can be enhanced
- Another objective of the present invention is to provide a softball comprising a core, a separation layer and a cover. The core is made of polyurethane that has high compression displacement. The separation layer is formed by wrapping, in a laminated manner, yarns around the core and soaking the wrapping yarns in adhesives. The cover is made of soft skin and comprises a buffering layer formed on an inside surface thereof. When the durability of the softball is improved by increasing the compression displacement of the core, the buffering layer provided on the inside surface of the cover provides counterbalance of the overall compression displacement of the softball in order to meet the requirement of the softball specifications.
- The foregoing object and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts.
- Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.
-
FIG. 1 is a cross-sectional view of a conventional softball; -
FIG. 2 is a perspective view, partially broken, of a softball constructed in accordance with the present invention; -
FIG. 3 is a cross-sectional view of a core and a separation layer of the softball in accordance with the present invention; and -
FIG. 4 is a cross-sectional view of the softball in accordance with the present invention. - The following descriptions are of exemplary embodiments only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function and arrangement of the elements described without departing from the scope of the invention as set forth in the appended claims.
- With reference to the drawings and in particular to
FIG. 2-4 , a softball constructed in accordance with the present invention, generally designated withreference numeral 2, comprises acore 3, aseparation layer 4, acover 5 and abuffering layer 6 arranged on an inner surface of thecover 5. - The
core 3 is made of polyurethane. This provides thecore 3 with better performance of compression displacement and thesoftball 2 can be made matching the specification of compression displacement or exceeding the specification of the compression displacement. - The
separation layer 4 is formed on windings ofyarns 41 wrapping around an outer circumference of thecore 3 to provide a layer of wrapping yarns of a desired thickness. Theyarns 41 can be made of polyester fibers, which help improving waterproofness of theseparation layer 4. Thecore 3 with the yarn layer can be soaked in adhesives to completely fill gaps between the yarns with the adhesives. The adhesiveness of the adhesives fixes theseparation layer 4 and thecore 3 and thecover 5 tightly together to thereby integrate theseparation layer 4 and thecore 3 together. Further, the adhesives that fill into the gaps between the yarns provide theseparation layer 4 with excellent waterproofness. As such, theseparation layer 4 functions to protect thecore 3 from being invaded by humidity or water. - The
cover 5 can be made of natural leather, composite leather, PVC (Poly Vinyl Chloride) PU or other synthetic materials and is stitched to surround theseparation layer 4 and thecore 3. - The
buffering layer 6 is made of a soft material, such as rubber, PU (polyurethane) foams, PE (polyethylene), and EVA, and is arranged on an inner side of thecover 5. The thickness range of thebuffering layer 6 is 1 to 2 mm, preferably 1.5 mm. Further, thebuffering layer 6 preferably has a hardness of 40 Shore A. - To embody the present invention, polyurethane is subjected to foaming to make the
core 3, and this gives the core 3 a compression displacement that meets the requirement of the specifications, or thecore 3 can be made exceeding the required compression displacement. Polyester yarns are then wrapped around, in a laminated manner, an outer circumference of thecore 3. Thecore 3 that is wrapped by the yarn layer is soaked in the adhesives to form theseparation layer 4 around the outer circumference of thecore 3. Finally, thecover 5 that is provided at an inner side thereof with thebuffering layer 6, is stitched to attach to an outer surface of theseparation layer 4, whereby thecover 5 wraps theseparation layer 4 and thecore 3 therein to thereby complete the manufacturing of thesoftball 2, which contains, from inside to outside, thecore 3, theseparation layer 4, thebuffering layer 6, and thecover 5. - The
softball 2 in accordance with the present invention at least has the following advantages: - (1) The
separation layer 4 is formed between thecover 5 and thecore 3. Theseparation layer 4 is made of wrappingyarns 41 soaked in adhesives and thus, has improved waterproofness. Therefore, when thesoftball 2 of the present invention is put in a high humidity environment, or when thesoftball 2 of the present invention is put in contact with water or liquids, the separation layers 41 functions to isolate thecore 3 from the invasion of the humidity or liquids, so that the life span of thesoftball 2 can be extended and the performance enhanced. Further, since theseparation layer 4 is formed by soaking the wrappingyarns 41 in the adhesives, thesoftball 2, upon hit, gives off a sharp sound. This enhances the performance of thesoftball 2. - (2) The
cover 5 is provided at the inner side thereof with thebuffering layer 6. This allows thecore 3 to be made in an over-specification manner. For example, when the specification requirement for the softball is set to be 375 lbs, thecore 3 in accordance with the present invention can be made with a compression displacement of 400 lbs. Or, in case that the overall compression displacement of the softball is required to be 400 lbs, thecore 3 in accordance with the present invention can be made with a compression displacement of 450 lbs. Although thecore 3 in accordance with the present invention is made over-specification with higher compression displacement, thebuffering layer 6 provides means of counterbalance by which the overall compression displacement of thesoftball 2 can be eventually set to the desired value. The increase of the compression displacement of thecore 3 allows thesoftball 2 made in accordance with the present invention durable. This is simply because that when thesoftball 2 is subjected to a hitting pressure of 430 lbs, thecore 3 that has a higher compression displacement of 450 lbs can effectively take the 430 lbs hitting force without being damaged. Consequently, thesoftball 2 of the present invention is more durable. - (3) The
buffering layer 6 that is arranged on the inside surface of thecover 5 allows thecore 3 to be made in an over-specification manner, and this not only improves the durability of thesoftball 2 but also enhances the performance of thesoftball 2 due to the increased compression displacement of thecore 3, which provides thecore 3 with higher hardness, so that when thesoftball 2 is hit, a sharp sound is given off and thesoftball 2 flies a longer distance. - (4) The
buffering layer 6 that is arranged on the inside surface of thecover 5 provides cushioning between a high-speed flying softball 2 and an individual when thesoftball 2 is thrown or hit to move toward the individual, whereby damage to the person by the flyingsoftball 2 is alleviated and safety is enhanced. - Although the present invention has been described with reference to the preferred embodiment thereof, it is apparent to those skilled in the art that a variety of modifications and changes may be made without departing from the scope of the present invention which is intended to be defined by the appended claims.
- It will be understood that each of the elements described above, or two or more together may also find a useful application in other types of methods differing from the type described above.
- While certain novel features of this invention have been shown and described and are pointed out in the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the spirit of the present invention.
Claims (6)
1. A softball comprising a core, a separation layer, and a cover, the separation layer being arranged between the core and the cover, the separation layer being formed by wrapping, in a laminated manner, yarns around the core and soaking the wrapping yarns in adhesives, a buffering layer made of soft material and formed on an inside surface of the cover, whereby the core is allowed to make with high compression displacement.
2. The softball as claimed in claim 1 , wherein the core is made of polyurethane.
3. The softball as claimed in claim 1 , wherein the yarns are formed of polyester fibers.
4. The softball as claimed in claim 1 , wherein the separation layer and the core are tightly fixed together.
5. The softball as claimed in claim 1 , wherein the separation layer and the cover that is provided with the buffering layer are tightly fixed together.
6. The softball as claimed in claim 1 , wherein the buffering layer is made of a material selected from a group consisting of rubber, polyurethane, polyethylene, and ethylene vinyl acetate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/831,965 US20080020874A1 (en) | 2006-01-09 | 2007-08-01 | Structure of softball |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/327,468 US20070161439A1 (en) | 2006-01-09 | 2006-01-09 | Softball |
US11/831,965 US20080020874A1 (en) | 2006-01-09 | 2007-08-01 | Structure of softball |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/327,468 Continuation-In-Part US20070161439A1 (en) | 2006-01-09 | 2006-01-09 | Softball |
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US20080020874A1 true US20080020874A1 (en) | 2008-01-24 |
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ID=46329103
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/831,965 Abandoned US20080020874A1 (en) | 2006-01-09 | 2007-08-01 | Structure of softball |
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US (1) | US20080020874A1 (en) |
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US10598958B2 (en) | 2014-08-21 | 2020-03-24 | Johnson & Johnson Vision Care, Inc. | Device and methods for sealing and encapsulation for biocompatible energization elements |
US10627651B2 (en) | 2014-08-21 | 2020-04-21 | Johnson & Johnson Vision Care, Inc. | Methods and apparatus to form biocompatible energization primary elements for biomedical devices with electroless sealing layers |
US10775644B2 (en) | 2012-01-26 | 2020-09-15 | Johnson & Johnson Vision Care, Inc. | Ophthalmic lens assembly having an integrated antenna structure |
US20210283468A1 (en) * | 2020-03-12 | 2021-09-16 | Swax Lax Llc | Sports training ball having embossed design |
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US9675443B2 (en) | 2009-09-10 | 2017-06-13 | Johnson & Johnson Vision Care, Inc. | Energized ophthalmic lens including stacked integrated components |
US9703120B2 (en) | 2011-02-28 | 2017-07-11 | Johnson & Johnson Vision Care, Inc. | Methods and apparatus for an ophthalmic lens with functional insert layers |
US10451897B2 (en) | 2011-03-18 | 2019-10-22 | Johnson & Johnson Vision Care, Inc. | Components with multiple energization elements for biomedical devices |
US9889615B2 (en) | 2011-03-18 | 2018-02-13 | Johnson & Johnson Vision Care, Inc. | Stacked integrated component media insert for an ophthalmic device |
US9914273B2 (en) | 2011-03-18 | 2018-03-13 | Johnson & Johnson Vision Care, Inc. | Method for using a stacked integrated component media insert in an ophthalmic device |
US9804418B2 (en) | 2011-03-21 | 2017-10-31 | Johnson & Johnson Vision Care, Inc. | Methods and apparatus for functional insert with power layer |
US20120244970A1 (en) * | 2011-03-23 | 2012-09-27 | Mizuno Corporation | Baseball |
US10775644B2 (en) | 2012-01-26 | 2020-09-15 | Johnson & Johnson Vision Care, Inc. | Ophthalmic lens assembly having an integrated antenna structure |
US10361405B2 (en) | 2014-08-21 | 2019-07-23 | Johnson & Johnson Vision Care, Inc. | Biomedical energization elements with polymer electrolytes |
US10558062B2 (en) | 2014-08-21 | 2020-02-11 | Johnson & Johnson Vision Care, Inc. | Methods and apparatus to form biocompatible energization primary elements for biomedical device |
US10627651B2 (en) | 2014-08-21 | 2020-04-21 | Johnson & Johnson Vision Care, Inc. | Methods and apparatus to form biocompatible energization primary elements for biomedical devices with electroless sealing layers |
US10367233B2 (en) | 2014-08-21 | 2019-07-30 | Johnson & Johnson Vision Care, Inc. | Biomedical energization elements with polymer electrolytes and cavity structures |
US10374216B2 (en) | 2014-08-21 | 2019-08-06 | Johnson & Johnson Vision Care, Inc. | Pellet form cathode for use in a biocompatible battery |
US10381687B2 (en) | 2014-08-21 | 2019-08-13 | Johnson & Johnson Vision Care, Inc. | Methods of forming biocompatible rechargable energization elements for biomedical devices |
US10386656B2 (en) | 2014-08-21 | 2019-08-20 | Johnson & Johnson Vision Care, Inc. | Methods and apparatus to form separators for biocompatible energization elements for biomedical devices |
US10598958B2 (en) | 2014-08-21 | 2020-03-24 | Johnson & Johnson Vision Care, Inc. | Device and methods for sealing and encapsulation for biocompatible energization elements |
US10361404B2 (en) | 2014-08-21 | 2019-07-23 | Johnson & Johnson Vision Care, Inc. | Anodes for use in biocompatible energization elements |
US10478677B2 (en) * | 2015-01-22 | 2019-11-19 | Swax Lax Llc | Sports training ball and method of manufacturing a sports training ball |
US20180008868A1 (en) * | 2015-01-22 | 2018-01-11 | Swax Lax Llc | Sports training ball and method of manufacturing a sports training ball |
US20170068937A1 (en) * | 2015-09-07 | 2017-03-09 | Vlinderstorm Bv | Mobile payment method and system |
US10345620B2 (en) | 2016-02-18 | 2019-07-09 | Johnson & Johnson Vision Care, Inc. | Methods and apparatus to form biocompatible energization elements incorporating fuel cells for biomedical devices |
US10512824B2 (en) | 2016-09-07 | 2019-12-24 | Swax Lax Llc | Sports training ball with enhanced gripping surface |
US20210283468A1 (en) * | 2020-03-12 | 2021-09-16 | Swax Lax Llc | Sports training ball having embossed design |
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