US3692340A - Finger joint for jointing boards, battens, planks, and other comparable bodies - Google Patents

Finger joint for jointing boards, battens, planks, and other comparable bodies Download PDF

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US3692340A
US3692340A US3692340DA US3692340A US 3692340 A US3692340 A US 3692340A US 3692340D A US3692340D A US 3692340DA US 3692340 A US3692340 A US 3692340A
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fingers
notches
sidewalls
pair
joint
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Ahti Aadolf Roth
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27F—DOVETAILED WORK; TENONS; SLOTTING MACHINES FOR WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES
    • B27F1/00—Dovetailed work; Tenons; Making tongues or grooves; Groove- and- tongue jointed work; Finger- joints
    • B27F1/16—Making finger joints, i.e. joints having tapers in the opposite direction to those of dovetail joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B12/00—Jointing of furniture or the like, e.g. hidden from exterior
    • F16B12/04—Non-loosenable joints for non-metal furniture parts, e.g. glued
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B12/00—Jointing of furniture or the like, e.g. hidden from exterior
    • F16B12/04—Non-loosenable joints for non-metal furniture parts, e.g. glued
    • F16B2012/043—Non-loosenable joints for non-metal furniture parts, e.g. glued using carpentry joints other than mortise and tenon joints, e.g. using multiple tenons
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/70—Interfitted members
    • Y10T403/7045—Interdigitated ends
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24521—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness with component conforming to contour of nonplanar surface
    • Y10T428/24537—Parallel ribs and/or grooves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31971—Of carbohydrate
    • Y10T428/31989—Of wood

Definitions

  • This invention relates to a novel finger joint for joining butt ends of timber, boards, planks and the like.
  • Conventional finger joints have their fingers and notches extending transversely at right angles to two parallel side walls in the timber or plank. This means that at the juncture of a finger tip with a notch bottom that the effective glue surface is only equivalent to the width of the timer or plank.
  • the present invention concerns a finger joint for jointing boards, battens, planks and other comparable bodies of wood, fibrous material deriving from wood, plastics or other comparable material, with another body by joining these together with the aid of the said finger joint, at which the fingers at the jointing end of both bodies are pressed into the corresponding notches between the fingers of the meeting body and are bound together by their side surfaces with the aid of glue.
  • a finger joint structure of this kind has certain disadvantages.
  • jointing construction timber gluing involves in addition to the usual end-to-end pressing also lateral pressing, which naturally retards the jointing work.
  • lateral pressing On those sides of the body which are of the same direction as the fingers and the notches, a harmful notch bottom of the width of the side is formed between the finger tip and the notch bottom.
  • tension tops are formed at the extreme spots of the joint, due to which the joint is liable to break.
  • the main characteristic feature of the finger joint according to the present invention is that the similarly directed fingers at the joint end of the bodies, and the notches inbetween, are running diagonally relative to the planes of the broad sides and the edges of the body.
  • FIG. 1 is a perspective view of the joint end of a timber made in accordance with the present invention
  • FIG. 2 is an elevational view of a joint wherein the outermost fingers have a length greater than the length of the intermediate fingers;
  • FIG. 3 is a view taken generally along the line 3-3 of FIG. 2;
  • FIG. 4 is a view of FIG. 2 taken from the left side;
  • FIG. 5 is a view of FIG. 2 taken from the right side;
  • FIG. 6 is an elevational view of a joint wherein the intermediate fingers are longer than the outermost finers
  • FIG. 7 is a view taken generally along the line 7-7 of FIG. 6;
  • FIG. 8 is a view of FIG. 6 taken from the left side.
  • FIG. 9 is a view of FIG. 6 taken from the right side.
  • the symbol 1 means the broad side of the timber, e.g. the plank, and 2 the corresponding edge surface.
  • a large number of notches 4 at equal distance from one another are made into the end of the plank, thus forming fingers 3 inbetween.
  • the notches 4 opening from the end side of the plank narrow down in the direction of depth, whereas the fingers 3 between them widen correspondingly.
  • the working of the notches 4, however, is carried out in such a way, that the direction of the notches and the fingers is at an angle of about 45 to the planes of the broad sides I.
  • Said direction is also at equal angle to the planes of the edge surfaces 2.
  • the latter plank is provided at the jointing end with a corresponding number of notches and fingers of corresponding shape and size and in corresponding angular direction, locating of course in such position with respect to the notches and the fingers of the illustrated plank, that the fingers when the planks are brought end to end are guided into one anothers notches on joining the planks together.
  • a suitable glue upon which the final gluing together of the joined planks is carried out entirely by longitudinal end-to-end pressing and possibly under application of heat.
  • the invention offers the following advantages: no side pressing is needed in gluing.
  • a notch bottom of the width of the side so that in subjecting the joint to normal strain, pull or bending, tension tops are not formed by notch effect in the outermost spots of the joint.
  • the strength of the joint increases considerably, particularly in bending, compared to the joint previously used.
  • the bending strength is almost the same as that of unjointed timber.
  • the relative strength of the joint in bending is equally high on the broad side as on the edge, because the joint is similar in the direction of the board side and the edge.
  • the joint on painting is not visible under the paint surface, and the timber can be planed just as unjointed timber.
  • the joint displays estetic beauty, because the joint is similar in appearance both on broad sides and edges. Furthermore, the joint can be worked with convention machines making small changes.
  • the modes of finger joint constructions according to the invention applicable in practical work may vary considerably within the scope of the invention from the construction presented in the drawing.
  • the shape of the cross-section of the fingers and the corresponding notches, their number and direction as well as the length of the fingers and correspondingly the depth of the notches may differ entirely from those presented in the drawing.
  • the surface determined by the tips of the joints in the sections of the fingers and the corresponding notches in the direction of depth may run straight or diagonally.
  • part of the fingers and the corresponding notches at the jointing ends may be longer and deviate in shape from the other fingers including notches.
  • the length of the outermost fingers, and correspondingly thedepth of the notches inbetween may be greater than the length of the intermediate fingers, and correspondingly the depth of the notches inbetween, or vice versa. Likewise the length of the fingers, and correspondingly the depth of the notches inbetween, may gradually increase or decrease towards the center.
  • a finger joint as claimed in claim 2 characterized in that the length of the outermost fingers in the length direction of the body members, and correspondingly the depth of the notches between the fingers, are greater than the length of the intermediate fingers, and correspondingly the depth of the notches between the fingers.
  • a finger joint as claimed in claim 2 characterized in that the length of the fingers in the length direction of the body members, and correspondingly the depthof the notches between the fingers, gradually increases toward the center.

Abstract

This invention relates to a novel finger joint for joining butt ends of timber, boards, planks and the like. Conventional finger joints have their fingers and notches extending transversely at right angles to two parallel side walls in the timber or plank. This means that at the juncture of a finger tip with a notch bottom that the effective glue surface is only equivalent to the width of the timer or plank. By making the fingers and notches diagonal to the two parallel side walls, the glue surface between contacting finger tips and notch bottoms is greatly increased thereby improving the strength characteristics of the jointed pieces.

Description

United States Patent Roth [151 3,692,340 1 Sept. 19, 1972 [54] FINGER JOINT FOR JOINTING BOARDS, BATTENS, PLANKS, AND OTHER COMPARABLE BODIES [21] Appl. No.: 26,870
[52] US. Cl ..287/20.92 T, 52/726, 161/11 1 [51] Int. Cl ..Fl6b 7/00 [58] Field of Search....287/20.92 T; 161/37, 48, 111;
[56] References Cited UNITED STATES PATENTS 3,480,054 11/1969 Man'an ..287/20.92 T 2,297,353 9/ 1942 Goss et al ..287/20.92 T 3,262,723 7/1966 Strickler ..287/20.92 T
OTHER PUBLICATIONS End Joining of Wood by means of Finger Joints By V. P. Pavlov, engineer, from a translation of an Russian article published by the U.S.S.R. Central Scientific Research Institute of Mechanical Woodworking. Forest Products Journal article Improved Tips For Finger Joints by D. B. Richards, pp. 250 & 251, published in June 1963.
Primary Examiner-David J. Williamowsky Assistant Examiner-Wayne L. Shedd Attorney-Woodling, Krost, Granger & Rust 57 ABSTRACT This invention relates to a novel finger joint for joining butt ends of timber, boards, planks and the like. Conventional finger joints have their fingers and notches extending transversely at right angles to two parallel side walls in the timber or plank. This means that at the juncture of a finger tip with a notch bottom that the effective glue surface is only equivalent to the width of the timer or plank. By making the fingers and notches diagonal to the two parallel side walls, the glue surface between contacting finger tips and notch bottoms is greatly increased thereby improving the strength characteristics of the jointed pieces.
4 Claims, 9 Drawing Figures FINGER JOINT FOR JOINTING BOARDS, BATTENS, PLANKS, AND OTHER COMPARABLE BODIES The present invention concerns a finger joint for jointing boards, battens, planks and other comparable bodies of wood, fibrous material deriving from wood, plastics or other comparable material, with another body by joining these together with the aid of the said finger joint, at which the fingers at the jointing end of both bodies are pressed into the corresponding notches between the fingers of the meeting body and are bound together by their side surfaces with the aid of glue.
- In the joint structure sofar used in jointing bodies of the above-mentioned type the direction of the finger and the notches inbetween has been vertical relative to the plane of the side of the body, i.e. of the same direction as the plane of the adjacent side.
A finger joint structure of this kind, however, has certain disadvantages. In jointing construction timber gluing involves in addition to the usual end-to-end pressing also lateral pressing, which naturally retards the jointing work. On those sides of the body which are of the same direction as the fingers and the notches, a harmful notch bottom of the width of the side is formed between the finger tip and the notch bottom. In subjecting such a joint to normal strain, pull or bending, tension tops are formed at the extreme spots of the joint, due to which the joint is liable to break.
Thanks to the present invention the disadvantages mentioned are avoided and improvements are accomplished also in other respects.
The main characteristic feature of the finger joint according to the present invention is that the similarly directed fingers at the joint end of the bodies, and the notches inbetween, are running diagonally relative to the planes of the broad sides and the edges of the body.
The other characteristic features of the invention are defined in the patent claims 2-5.
FIG. 1 is a perspective view of the joint end of a timber made in accordance with the present invention;
FIG. 2 is an elevational view of a joint wherein the outermost fingers have a length greater than the length of the intermediate fingers;
FIG. 3 is a view taken generally along the line 3-3 of FIG. 2;
FIG. 4 is a view of FIG. 2 taken from the left side;
FIG. 5 is a view of FIG. 2 taken from the right side;
FIG. 6 is an elevational view of a joint wherein the intermediate fingers are longer than the outermost finers;
g FIG. 7 is a view taken generally along the line 7-7 of FIG. 6;
FIG. 8 is a view of FIG. 6 taken from the left side; and
FIG. 9 is a view of FIG. 6 taken from the right side.
In the drawing the symbol 1 means the broad side of the timber, e.g. the plank, and 2 the corresponding edge surface. A large number of notches 4 at equal distance from one another are made into the end of the plank, thus forming fingers 3 inbetween. The notches 4 opening from the end side of the plank narrow down in the direction of depth, whereas the fingers 3 between them widen correspondingly. The working of the notches 4, however, is carried out in such a way, that the direction of the notches and the fingers is at an angle of about 45 to the planes of the broad sides I.
Said direction is also at equal angle to the planes of the edge surfaces 2.
In order to join the illustrated plank with another plank of the same size and shape of cross-section, the latter plank is provided at the jointing end with a corresponding number of notches and fingers of corresponding shape and size and in corresponding angular direction, locating of course in such position with respect to the notches and the fingers of the illustrated plank, that the fingers when the planks are brought end to end are guided into one anothers notches on joining the planks together. Before jointing the notch and finger surfaces pressing against one another are coated with a suitable glue, upon which the final gluing together of the joined planks is carried out entirely by longitudinal end-to-end pressing and possibly under application of heat.
The invention offers the following advantages: no side pressing is needed in gluing. In the joint there is on no side surface of the body a notch bottom of the width of the side, so that in subjecting the joint to normal strain, pull or bending, tension tops are not formed by notch effect in the outermost spots of the joint. On this account the strength of the joint increases considerably, particularly in bending, compared to the joint previously used. The bending strength is almost the same as that of unjointed timber. In additional the distribution of the values of bending strength decreases to a marked degree. Due to these circumstances the permitted values of bending strength'can be increased. The relative strength of the joint in bending is equally high on the broad side as on the edge, because the joint is similar in the direction of the board side and the edge. Because there is no butt joint on any side the joint on painting is not visible under the paint surface, and the timber can be planed just as unjointed timber. The joint displays estetic beauty, because the joint is similar in appearance both on broad sides and edges. Furthermore, the joint can be worked with convention machines making small changes.
Naturally the invention is not restricted only to that which is illustrated in the drawing and described above, but the modes of finger joint constructions according to the invention applicable in practical work may vary considerably within the scope of the invention from the construction presented in the drawing. Thus, for example, the shape of the cross-section of the fingers and the corresponding notches, their number and direction as well as the length of the fingers and correspondingly the depth of the notches may differ entirely from those presented in the drawing. Furthermore, the surface determined by the tips of the joints in the sections of the fingers and the corresponding notches in the direction of depth may run straight or diagonally. Likewise, part of the fingers and the corresponding notches at the jointing ends may be longer and deviate in shape from the other fingers including notches. The length of the outermost fingers, and correspondingly thedepth of the notches inbetween, may be greater than the length of the intermediate fingers, and correspondingly the depth of the notches inbetween, or vice versa. Likewise the length of the fingers, and correspondingly the depth of the notches inbetween, may gradually increase or decrease towards the center.
I claim:
l. A finger joint for end joining first and second body members such as boards, battens, planks and other comparable materials including fibrous materials and synthetic resinous products, each said body member comprising a first pair of spaced and generally parallel sidewalls defining the width of the member and a second pair of spaced and generally parallel sidewalls transversely connecting said first pair of sidewalls and defining the thickness of the member, the cross section of each member comprising a quadrilateral shape, said joint comprising fingers on the end of said first body.
member pressed into corresponding notches between fingers on the end of said second body member, the medial planes of said fingers and notches on the end of each body member extending parallel to each other and diagonally relative to the planes of said first and second pair of sidewalls, some of said fingers and notches extending from one of said second pair of sidewalls to one of said first pair of sidewalls, some of said fingers and notches extending between the sidewalls of said first pair, some of said fingers and notches extending from the other of said first pair of sidewalls to the other of said second pair of sidewalls and none of said fingers and notches extending between the sidewalls of said second pair.
2. A finger joint as claimed in claim 1, characterized in that the directional angle of the medial planes of the fingers and their notches is in the range of from 10 to preferably about 45, from the direction of the planes of the first pair of sidewalls, and correspondingly from the planes of the second pair of sidewalls, in the cross section of the body members.
3. A finger joint as claimed in claim 2, characterized in that the length of the outermost fingers in the length direction of the body members, and correspondingly the depth of the notches between the fingers, are greater than the length of the intermediate fingers, and correspondingly the depth of the notches between the fingers.
4. A finger joint as claimed in claim 2, characterized in that the length of the fingers in the length direction of the body members, and correspondingly the depthof the notches between the fingers, gradually increases toward the center.
UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3,692,340 Dated September 19, 1972 Inventor(s) Ahti Aadolf Roth It is certified that error appears in the aboveidentified patent and that said Letters Patent are hereby corrected as shown below:
On the cover sheet, insert [30] Foreign Priority Data Finland April 8, 1969 1004/69 Signed and sealed this 8th day of May 1973-. I
(SEAL) Attest:
EDWARD M.FLETCHER,JR. ROBERT GOTTSCHALK Attesting Officer 7 Commissioner of Patents I USCOMM-DC 60376-P69 fi u.s GOVERNMENT PRINTING OFFICE: [969 0-366-334.

Claims (4)

1. A finger joint for end joining first and second body members such as boards, battens, planks and other comparable materials including fibrous materials and synthetic resinous products, each said body member comprising a first pair of spaced and generally parallel sidewalls defining the width of the member and a second pair of spaced and generally parallel sidewalls transversely connecting said first pair of sidewalls and defining the thickness of the member, the cross section of each member comprising a quadrilateral shape, said joint comprising fingers on the end of said first body member pressed into corresponding notches between fingers on the end of said second body member, the medial planes of said fingers and notches on the end of each body member extending parallel to each other and diagonally relative to the planes of said first and second pair of sidewalls, some of said fingers and notches extending from one of said second pair of sidewalls to one of said first pair of sidewalls, some of said fingers and notches extending between the sidewalls of said first pair, some of said fingers and notches extending from the other of said first pair of sidewalls to the other of said second pair of sidewalls and none of said fingers and notches extending between the sidewalls of said second pair.
2. A finger joint as claimed in claim 1, characterized in that the directional angle of the medial planes of the fingers and their notches is in the range of from 10* to 80*, preferably about 45*, from the direction of the planes of the first pair of sidewalls, and correspondingly from the planes of the second pair of sidewalls, in the cross section of the body members.
3. A finger joint as claimed in claim 2, characterized in that the length of the outermost fingers in the length direction of the body members, and correspondingly the depth of the notches between the fingers, are greater than the length of the intermediate fingers, and correspondingly the depth of the notches between the fingers.
4. A finger joint as claimed in claim 2, characterized in that the length of the fingers in the length direction of the body members, and correspondingly the depth of the notches between the fingers, gradually increases toward the center.
US3692340D 1969-04-08 1970-04-09 Finger joint for jointing boards, battens, planks, and other comparable bodies Expired - Lifetime US3692340A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI100469A FI42243B (en) 1969-04-08 1969-04-08
US2687070A 1970-04-09 1970-04-09

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DE (1) DE2016592A1 (en)
FR (1) FR2038317A1 (en)
GB (1) GB1294377A (en)
NL (1) NL7004868A (en)

Cited By (25)

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US3880674A (en) * 1970-01-20 1975-04-29 Rockwell International Corp Thermoelectric elements and devices and process therefor
US4003535A (en) * 1975-07-10 1977-01-18 Tianchon Carmelito B Modular furniture
US4412405A (en) * 1981-08-28 1983-11-01 Tucker Jasper J Interlocking building structure
US4530871A (en) * 1984-07-18 1985-07-23 You Chin San Ski construction
EP0160814A2 (en) * 1984-05-05 1985-11-13 VS Vereinigte Spezialmöbelfabriken GmbH & Co. Connecting means especially for furniture
EP0206960A1 (en) * 1985-04-02 1986-12-30 Jean Claude Kapikian System for joining and fastening of two structure parts by means of a fastening element
US4640065A (en) * 1985-10-07 1987-02-03 Owens-Corning Fiberglas Corporation Structural member
US5203639A (en) * 1991-05-06 1993-04-20 Femrite Loren G Sinuose dado joint
US5419657A (en) * 1992-05-08 1995-05-30 Rowan Companies, Inc. Method and apparatus for transferring a structure from a jack-up rig to a fixed platform
US5934347A (en) * 1997-06-19 1999-08-10 Phelps; Marvin M. System and process for material management
US5985415A (en) * 1997-11-17 1999-11-16 Reconnx, Inc. Finger joint architecture for wood products, and method and apparatus for formation thereof
US20020015815A1 (en) * 2000-08-01 2002-02-07 Dwight Flach Concentric finger jointed timber
US6374445B1 (en) * 1998-06-27 2002-04-23 Dornier Gmbh Tension rod for use as a chord for bridges
US6450235B1 (en) * 2001-02-09 2002-09-17 Han-Sen Lee Efficient, natural slat system
US20030005652A1 (en) * 1996-03-08 2003-01-09 Burns, Morris & Stewart Limited Partnership Component with integral environment resistant members
US20030026955A1 (en) * 1999-11-06 2003-02-06 Reconnx, Inc. Wood product joint forming apparatus
US20030182880A1 (en) * 1994-12-27 2003-10-02 Weaber Matthew G. Reinforced stair tread and methods for making same
US6763873B2 (en) 2001-02-09 2004-07-20 Han-Sen Lee Efficient, natural slat system, covering and method
US20040250508A1 (en) * 2003-02-19 2004-12-16 C&M Wood Industries, Inc. Wood products with hidden joined markings and a finished veneer look
WO2006056651A1 (en) * 2004-11-29 2006-06-01 Patenttitoimisto T Poutanen Oy Joint between wood pieces
US20080033890A1 (en) * 2006-08-03 2008-02-07 Inderjeet Singh Aggregation of individual investments
US20080277026A1 (en) * 2007-05-07 2008-11-13 Gary Sill Joint for connecting wood members
US20140157712A1 (en) * 2012-12-10 2014-06-12 Brad Wells Method and Apparatus for Temporary Surface Protection
ES2574356A1 (en) * 2014-12-16 2016-06-16 Manuel PÉREZ ROMERO Jointed structural connection to the front for flat tables, and method of construction (Machine-translation by Google Translate, not legally binding)
US11787081B1 (en) 2023-05-30 2023-10-17 Frametec Alpha IP LLC Wooden truss manufacturing system and method

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GB8817632D0 (en) * 1988-07-23 1988-09-01 Hunting Eng Ltd Quick release joint
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US2297353A (en) * 1937-08-02 1942-09-29 Oliver P M Goss Lumber
US3262723A (en) * 1961-05-29 1966-07-26 Univ Washington Finger jointing of lumber
US3480054A (en) * 1966-06-29 1969-11-25 Hombak Maschinenfab Kg Method of forming finger joints

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Publication number Priority date Publication date Assignee Title
US2297353A (en) * 1937-08-02 1942-09-29 Oliver P M Goss Lumber
US3262723A (en) * 1961-05-29 1966-07-26 Univ Washington Finger jointing of lumber
US3480054A (en) * 1966-06-29 1969-11-25 Hombak Maschinenfab Kg Method of forming finger joints

Non-Patent Citations (2)

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Title
End Joining of Wood by means of Finger Joints By V. P. Pavlov, engineer, from a translation of an Russian article published by the U.S.S.R. Central Scientific Research Institute of Mechanical Woodworking. *
Forest Products Journal article Improved Tips For Finger Joints by D. B. Richards, pp. 250 & 251, published in June 1963. *

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3880674A (en) * 1970-01-20 1975-04-29 Rockwell International Corp Thermoelectric elements and devices and process therefor
US4003535A (en) * 1975-07-10 1977-01-18 Tianchon Carmelito B Modular furniture
US4412405A (en) * 1981-08-28 1983-11-01 Tucker Jasper J Interlocking building structure
EP0160814A2 (en) * 1984-05-05 1985-11-13 VS Vereinigte Spezialmöbelfabriken GmbH & Co. Connecting means especially for furniture
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US4530871A (en) * 1984-07-18 1985-07-23 You Chin San Ski construction
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Also Published As

Publication number Publication date
DE2016592A1 (en) 1970-10-15
GB1294377A (en) 1972-10-25
NL7004868A (en) 1970-10-12
FR2038317A1 (en) 1971-01-08

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