US2624621A - Atomizer - Google Patents

Description

gam. 6, 3953 Filed Jun@ 228, lEvl IE'E NVENTOR BIJNA-,L17 J P55125 BY 0. L0 @ww ATTORNEY Patented Jan. 6, 1953 ATODHZER Donald J. Peeps, Toledo, Ohio, assignor to The De Vilbiss Company, Toledo, Ohio, a corpora-- tion of Ohio Application June 2s, 1951', serial No. 234,043

This invention relates to an atomizer for spraying perfume and to such an atomizer of a compact size for carrying in a pocket or purse and having means for maintaining the atomizer sealed against leakage when not in use.

A principal object of the invention is the provision of an atomizer of the type described which may be economically produced and is designed to stand long use without failure.

These and other objects and advantages of the invention may be perceived by referring to the following description and the accompanying drawings.

In the drawings:

Figure l is an elevational View of an atomizer embodying the invention;

Figure 2 is a vertical section with the atomizer turned 90 to the left of its position in Figure 1;

Figure 3 is a horizontal section of one part of the casing taken on the line 3-3 of Figure 2;

Figure 4 is a horizontal section taken on the line d-d of Figure 2;

Figure 5 is an enlarged front view of the piston member of the atomizer; and

Figure 6 is an enlarged vertical section of the lower portion of the atomizer taken on the line B-I of Figure 1.

Referring in more detail to the drawings the atomizer has a main cylindrical casing I into which is telescopingly xed an upper casing extension 2. The two parts are rmly joined by a press t. To permit easier starting of the telescoping press fit the lower end of the extension 2 has a limited longitudinal slot 2 I.

A compact piston 3 is lodged within the casing I. By locking disc nut 4 a downwardly facing cup leather 5 is held to the bottom of the piston 3. An expanding washer 6 between the nut 4 and cup leather 5 retains the latter in contact with the casing wall. A spring 'I rests on the inner bottom of the casing and is thrust against the lower end of the piston.

The stud 8 extending downwardly from the lower end of the piston is an anchoring post for the locking nut 4, a stopping element for downward movement of the piston, and provides an outlet for the air compressed beneath the piston by way of the vertical bore 9 therethrough. This bore communicates with a laterally directed yair discharge nozzle I Il.

The piston 3 has an upper cylindrical extension II. This extension is of reduced diameter and is axially offset in respect to the lower portion of the piston 3.

In the upper end of extension II is a threaded 4 Claims. (Cl. 299-88) socket I2 adapted to receive the threaded neck' of an inverted perfume vial I3. The vial is of sufficient length to project out of the casing extension 2 to provide a linger contacting portion for actuation of the piston. Within the socket l2 is a gasket I4 for sealing reception of the vial.

A liquid passage I5 descends at an angle from the socket I2 into the piston body to a point below the air nozzle I0. The passage I5 then turns upwardly for delivering liquid to the liquid discharge tip I6, the outlet of which is forwardly in line-V with the outlet of air nozzle I0. The nozzle and.. tip terminate within the lower end of a vertical'. groove I'I which extends the length of the most; offset side of theA piston extension and slightly' into the main piston body.

For proper atomizing cooperation between the air nozzle Ill and the liquid tip I6 they are positioned in outwardly converging relation with the air nozzle above the liquid tip in the same radial plane from the piston axis. In order for the air passage bore 9 and the liquid passage I5 to communicate respectively with the air nozzle IIJ and the liquid tip I6 both the bore and the passage are oppositely off-center and the latter is angled to pass beneath the air nozzle.

The lower edge I8 of the casing extension 2 by opposing the shoulder I9 formed at the juncture of the two differing diameters of the piston constitutes a stop for the spring propelled upward movement of the piston.

A small section 20 of the lower edge I8 of the casing extension is flanged inwardly into the groove Il forming a downwardly facing pocket 22. The piston extension 2 of reduced diameter is offset in order that the guiding groove I'I therein is closely adjacent to the casing for receiving the flanged edge section 20. The latter serving as a key in the groove I'I prevents relative turning of the piston 3 and the casing' I.

In the pocket 22 is a liquid tip sealing plug 23. The plug 23 is kept vertically in line with the tip by the key action of the pocket ilange 20 extending into the groove I1. A vertically elongated aperture 24 in the casing provides an opening for the discharge of atomized perfume formed by the low of air across the outlet of the liquid tip I6.

The abutment of the piston shoulder I9 against the lower edge I8 of the casing extension 2 is gauged to permit sealing contact of the liquid tip I6 with the sealing plug 23 while preventing too flcful inpingement of the tip against the plug which would deform the latter and destroy its sealing effect.

In using this atomzer the vial I3 is first de-` tached for lling. With the atomizer in inverted position the lled vial is threaded tightly back into place against the gasket I4. Then holding the atomizer endwise between the thumb and forenger the projecting end of the vial is repeatedly pressed inwardly against the return pressure of the spring 1. The downward movement of the piston draws the liquid tip I6 away from the sealing plug 23 and places the air nozzle and liquid tip in line with the aperture 24 for spraying therethrough.

The air compressed beneath the piston travels upwardly through bore 9 and out air nozzle I0. The resulting air jet passing over the outlet of liquid tip I6 creates a suction effect thereon and draws perfume from the vial and out of the tip. This perfume is atomized by the action of the air and is discharged forwardly through aperture 24.

On discontinuance of the atomizing action the piston is returned by the spring 'I to its upper stopped position against edge I8 of the casing extension `2 with the liquid tip I6 slightly embedded in the sealing plug.

It may be observed from the preceding that the design of atomizer set forth is compact, inexpensive to manufacture, has a minimum number of parts and a simple but effective sealing means.

The features believed to be novel and which contribute to the improved results include the holder for the sealing plug which also serves as a key for guiding the piston vertically; the form of piston which provides the stop shoulder preventing the liquid tip from penetrating the I tion which may be embodied in various forms other than that specically disclosed herein.

Having -thus described my invention, `what I claim as new, yand desire to secure by United States VLetters .Patent is:

l. In an atomizer of the type described, a casing with a side opening for spray discharge, a piston in the casing, a longitudinal groove in the side of the piston, a liquid outlet nozzle projecting from the piston upwardly into the groove and longitudinally in register with the side opening in the casing, a flange extending into the groove from the wall of the casing preventing relative turning of the piston and casing, nozzle sealing material supported by said flange, and a spring beneath the piston thrusting the piston upwardly, thereby yieldingly holding the liquid nozzle against the sealing material.

2. In an atomizer of the type described an open topped casing, a piston of cylindrical form within the casing above an air compression chamber, an inverted liquid container attached to the upper end of the piston, said piston having a longitudinal groove along one side, spray nozzle means carried by the piston and projecting into 'the groove toward an opening in the side of the casing, said piston having air and liquid passages respectively from its lower and upper ends to said nozzle means, and a projection extending from the casing wall inwardly into the groove to maintain the piston and casing in vertical alignment.

3. An atomizer as set forth in claim 2 in which a sealing element is secured to the underside of the projection, and there is a spring beneath the piston impelling it upwardly and bringing the nozzle means carried thereby into contact with the sealing element.

4. An atomizer as set forth in claim 2 in which the upper end of the piston is of reduced cylindrical form and is axially offset in respect to the lower piston portion, and the longitudinal groove extends along that side of the upper end of the piston nearest the side wall vof the casing.

DONALD J. PEEPS.

REFERENCES CITED The following references are of record in the le of this patent:

Number Name Date 2,079,587 Aronson May 1l, 1937 2,203,576 Mikosz June 4, 1940 2,462,563 Seyforth Feb. 22, 1949 2,528,641 Cotter Nov. 7, 1950

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