Spraying device of aerosol contained in a removable tank

(is] 3,662,958

United States Patent

German

[45] May 16,1972

[54] SPRAYING DEVICE OF AEROSOL CONTAINED IN A REMOVABLE TANK

[ 72 ] Inventor: Paul German, 71 Chemin du Levant, 1006 Lausanne, Switzerland

[22] Filed: July 21, 1970

[21] Appl.No.: 56,800

[30] Foreign Application Priority Data

July 15, 1969 Switzerland........................11.423/69

[52] U.S.C1........................ 239/274

[51] IntCl...............A62c 31/28, B05b 15/00,B62d 137/50

[58] Field of Search..................................................239/274

[56] References Cited

UNITED STATES PATENTS

3,347,468 11/1967 King......................................239/274

FOREIGN PATENTS OR APPLICATIONS

424,026 2/1935 Great Britain.........................239/274

598,830 5/1960 Canada..................................239/274

Primary Examiner—Lloyd L. King

Attorney—Emory L. Groff and Emory L. Groff, Jr.

(57] ABSTRACT

The device provides means for actuating an aerosol spray tank removably mounted on a door, door frame or wall of a bathroom, for example, when the door is shut. The actuating means comprises a rotatable cam member which is urged against the valve of the aerosol spray tank to open the same by a spring controlled plunger. The cam member and plunger are supported on a mounting plate which includes means for supporting the aerosol spray tank and adjusting the position thereof.

2,728,608 12/1955 Marini...................................239/274

Claims, 1 Drawing Figure

<img file="US3662958A_D0001.tif" />

Patented May 16, 1972

3,662,958

<img file="US3662958A_D0002.tif" />

3,662,958

SPRAYING DEVICE OF AEROSOL CONTAINED IN A REMOVABLE TANK

The present invention relates to a device designed for the spraying of aerosol from a removable tank fixed on an as- 5 sembly plate, whereby the action of the movement of a door or of another movable means, operates the valve of the aerosol tank by means of a member which moves first in one direction, then by the action of a spring moves in the opposite direction. 10

There are known devices accomplishing the same objective, by means of which an operating contact of the valve of the aerosol tank is brought into service either by a mechanical device or by an electrical means, in order to spray a certain quantity of a deodorant, disinfectant, insecticide or other 15 analogous products in aerosol form into the interior of a room, especially in a bath room or rest room, when the door of the room is brought into movement. Such devices are, however, undesirable in certain respects. They have the disadvantage of being relatively expensive and they require a skilled workman 20 for installation and service.

The object of the present invention is to eliminate such disadvantages by means of a control member operating an actuating member retained in its inoperative position by means of springs and able to rotate or oscillate around a shaft fixed 25 on a small supporting plate joined rigidly to the assembly plate of the device. The control member actuates the valve of the aerosol tank when it moves in one direction but has no effect on the valve when it moves in the opposite direction or when it is in an intermediate inoperative position. 30

A preferred embodiment of the invention is shown in the attached drawing wherein the single FIGURE is a side elevation of the device.

Referring to the drawing in detail, the invention includes a mounting plate 1 designed to be screwed onto a door, a door 35 frame or a wall. The mounting plate 1 is joined rigidly with an angle iron 2 having a horizontally bent flange at its lower end which serves as a support for an adjusting screw 3 disposed parallel to the plane of the plate 1. The screw 3 is provided with a supporting head 4 indicated by dotted lines in the draw- 40 ing.

The head engages the bottom of an aerosol tank 6 which is frictionally gripped by a jaw 5 secured to the plate 1 so as to permit vertical adjustment of said tank to proper operating position. 45

The tank 6 and the jaw 5 are covered having a removable cover 7 with a spraying opening 7α illustrated in a dot-dash lines in the drawing. The device is, also provided at the top of the mounting plate, with a plunger or button 8 engaged by a helical spring 9. The push-button 8 is fixed on one end of a 50 slidable spindle 11 which passes through a guide sleeve 10 screwed into mounting plate 1. The other end of the spindle 11 is provided with a head 12.

When the push-button 8 is moved, for example by the shutting of a door, the spring 9 is compressed and the spindle 55 11 is moved to a position 11', sliding in the guide sleeve 10 screwed in the mounting plate 1. The head 12 strikes the edge of a cam 15, retained in its inoperative position by means of a helical spring 14. The cam 15 is made preferably of a plastic material which is easily slidable and wear resistant, for example of polyfluorethylene. This cam is able to rotate on a fixed shaft on a small supporting-plate or arm 13 joined rigidly to the mounting plate 1.

During its rotating movement, the cam 15 depresses a leaf spring 16 also joined rigidly to the mounting plate 1, the said leaf spring 16 in turn depressing the valve 17 of the aerosol tank 6, which causes the spraying of a certain quantity of aerosol. When the door remains shut and when the push-head 12 has attained the position 12' as shown in the drawing in dot-dash lines, the cam 15 returns to its inoperative or rest position under action of the springs 14, 16 and of the spring (not shown) which normally urges the valve 17 to a closed position.

During the next opening of the door, the pushbutton 8 and cylindrical spring 9 are not actuated thereby because the spindle 11 has been returned to its inoperative position as illustrated by full lines in the drawing by expansion of spring 9 acting on push-button 8. During the return of spindle 11, the head 12 moves over the cam 15 without having any effect on the valve 17 of the aerosol tank 6, so that the process as described above can be repeated when the door is shut again.