US1953102A

US1953102A - Liquid dispenser

Info

Publication number: US1953102A
Application number: US684599A
Authority: US
Inventors: Paul B Brown
Original assignee: DeVilbiss Co
Current assignee: DeVilbiss Co
Priority date: 1933-08-10
Filing date: 1933-08-10
Publication date: 1934-04-03
Anticipated expiration: 1951-04-03

Description

LIQUID DI S PENS ER Filed Aug. 10, 1933 Patented Apr. 3, 1934 LIQUID DISPENSER Paul B. Brown, Toledo,.Ohio, assignor to The De Vilbiss Company, tion of Ohio Application August 10,

7 Claims.

ing specification, and while in its broader aspect I it is capable of embodiment in various forms, a preferred embodiment thereof is illustrated in the accompanying drawing, which is a fragmentary side elevation of a device embodying the invention, with parts in central vertical section,

20 taining the perfume, or other liquid to be dispensed, and which, in the present instance, is provided with a neck 2, with a ferrule 3 securely mounted thereon. A discharge head 4 is mounted on the ferrule and is provided vertically therethrough with a bore 5, the lower end portion of which is reduced and interiorly threaded, as shown at 6. A coupling member 7 of nipple-form, with an axial opening therethrough, is extended up through a central opening in the ferrule top, and threads into the reduced portion 6 of the head 4, while the end thereof within the ferrule is enlarged to provide an annular shoulder, which engages and holds a washer member 8 to the inside of the ferrule top in opposition to the head.

A plug 9 is fitted into the upper end of the bore 5, its lowering movement therein being limited by the plug having shouldered engagement with the top of the head, as shown at 10. The lower end of the plug is provided with a reduced ex- 4 tension 11, which projects down through, or partially through, the opening through the nipple 7 in spaced relation to its wall, so that communication is provided between the lower end portion of the cavity formed by the enlarged portion of the bore and the upper end portion of the receptacle 1.

The plug 9 is provided in its upper or outer end portion with an axially disposed cavity 12, and in its lower end portion with a cavity 13, in which latter is fitted, in the present instance, a tube 14 extending down into the receptacle 1 to near the bottom thereof. The adjacent ends of the

cavities

12 and 13 are in communication through a restricted passage 15, and this passage is closed at its inner or receptacle end by a valve Toledo, Ohio, a corpora- 1933, Serial No. 684,599

16, in the present instance of the ball type, when pressure is present in the receptacle. The valve 16 normally seats down on the upper end of the tube 14, but does not close the end of such tube,

due to the provision of notches therein, as indi- I cated and as well Lmderstood in the valve art.

A sampler member 17 is removably carried by the plug 9 and includes a handle portion 18 with a plug portion 19 at its inner end for fitting into and closing the outer end portion of the cavity 12. A stem 20 of less diameter than the cavity 12 fixedly projects downwardly from the plug portion 19 of the sampler, and when said portion is seated in the cavity 12, the lower end of the stem projects through and slightly beyond the lower end of the passage without closing the communication through said passage between the

cavities

12 and 13. When the stem is in this position, with respect to the passage 16, its lower end serves as a stop for the valve 16 to prevent it, under pressure within the receptacle, from closing said passage. The stem carries a cup 21 within the cavity 12 for the purpose hereinafter described. When the plug 19 is seated in the cavity 12, the cup 21 is spaced from I the bottom and side walls of such cavity, so as not to interfere with the passage of liquid through the passage 15 and around the cup.

The lower end portion of the head bore 5 has communication at one side thereof through a tube 22 with a source of air pressure supply, which, in

I the present instance, is shown as comprising a hand-pressure bulb 23 of the type customarily used on atomizers. Air pressure introduced into the bore 5 is supplied to the receptacle 1 above the liquid therein through the nipple 7 between it and the reduced portion 11 of the plug 9.

A liquid discharge tube 24 is topped into a side of the head 4 andcommunicates with the cavity 12 preferably at or slightly above the upper edge of the cup 21 through a wall passage 25. A nozzle 26 is carried by the tube 24 at its outer end. In the operation of the device, liquid is discharged from the nozzle 26 into a receiving receptacle, during a dispensing operation, by creating a sufficient air pressure in the receptacle to force the liquid up into the cavity 12 through the tube 14 and thence to the discharge tube 24 and its nozzle. During this operation, the sampling member 17 is in position in the head, as shown in the drawing, with the lower end of its stem 20 projecting into the cavity 13 of the plug 9 a sufiicient distance to prevent a seating of the valve 16 against the lower edge wall of the restricted passage 15 when the valve is raised by pressure within the receptacle. During an operation of the device, a portion of the liquid, which enters the cavity 12, is received within the cup 21 and remains therein for sampling should the member 17 be removed from the head for such purpose. Any liquid contained Within the cup 21, while in the cavity 12, will remain therein unevaporated for a considerable period, inasmuch as the top of the cavity 12 is closed to the atmosphere by the plug 19 and the only open communication with the atmosphere is through the discharge tube 24 and its nozzle 26. It is apparent that should the cup 21 be empty, it may be supplied with'liquid from the receptacle by creating a sufficient pressure within the receptacle to force the liquid up into the cavity 21. When the sampler member is removed, the valve 16 closes under pressure from within the receptacle to prevent such pressure from passing liquid up into the cavity 12.

In order to relieve the air pressure from the interior of the receptacle when it is desired to stop a discharging of the liquid through the tube 24, a vent hole 2'7, in the present instance, is provided in the air inlet tube 22, to be covered by the operator during the dispensing operation, and released or uncovered at the end of such operation, as well understood in the art.

I wish it understood that my invention is not limited to any specific arrangement or formof the parts, as it is capable of numerous modifications and changes without departing from the spirit of the claims.

Having thus described my invention, what I claim as new, and desire to secure by United States Letters Patent, is:

1. In a liquid dispensing device, a liquid receptacle, means forming a liquid discharge passage from the bottom portion of the receptacle and an air pressure supply passage in communication with the upper portion of the receptacle, and means disposed in a portion of the liquid passage and adapted to be removed therefrom and to carry with it a portion of the liquid which has entered the liquid passage from the receptacle.

2. In a liquid dispensing device, a liquid receptacle, means carried by the receptacle and forming a liquid discharge passage in communication with the lower portion of the receptacle and. an

air pressure supply passage in communication with the upper portion of the receptacle, said liquid passage having a cavity therein, and a sampling device removably mounted in said cavity and adapted when removed therefrom to carry with it a portion of the liquid forced into the cavity from the receptacle.

3. In a liquid dispensing device, a receptacle, means associated with the receptacle and providing a liquid discharge passage in communication at its inner end with the lower interior portion of the receptacle and an air pressure supply passage opening communication between a source of air pressure supply and the upper portion of the receptacle, and a sampler means removably mounted in a portion of said first means and having a cup portion disposed in said liquid discharge passage for receiving for sampling purposes a portion of the liquid discharging through said passage.

4. In a liquid dispensing device, a receptacle, means associated with the receptacle and providing a liquid discharge passage in communication at its inner end with the lower interior portion of the receptacle and an air pressure supply passage opening communication between a source of air pressure supply and the upper portion of the receptacle, a sampler means removably mounted in a portion of said first means and having a cup portion disposed in said liquid discharge passage for receiving for samplingpurposes a portion of the liquid discharging through said passage, and means operable to close said liquid discharge passage when said sampler means is removed from the cavity.

5. In a liquid dispensing device, a receptacle, means associated with-the receptacle and providing a liquid discharge passage in communication at its inner end with the lower interior portion of the receptacle and an air pressure supply passage opening communication between a source of air pressure supply and the upper portion of the receptacle, a sampler means removably mounted in a portion of said first'means andhaving a cup portion disposed in said liquid discharge-passage for receiving for sampling purposes a portion of the liquid discharging through saidpassage, and valve means automatically operable within the liquid passage by pressure in the receptacle to close said passage when the sampler means is removed therefrom.

6. In a liquid dispensing device, a receptacle, means associated with the receptacle and provid ing a liquid discharge passage'in communication at its inner end with the lower interior portion of the receptacle and an air pressure supply passage opening communication between a source of air pressure supply and the'upper portion of the receptacle, a sampler means removably mounted in a portion of said first means and having a cup portion disposed in-said liquid discharge passage for receiving for sampling purposes a portion of the liquid discharging through said passage, and

valve means automatically operable within the liquid passage by pressure in the receptacle to close said passage when the sampler meansis-removed therefrom, said sampler means when mounted in said first means having coaction with the valve means to prevent a passage closing seating'of the latter.

.7. In a liquid dispensing device, a liquid receptacle, a head mounted thereon and having a bore therethrough in communication at one: end

with the upper interior portion of the receptacle, a plug mounted in said boreand forming a cavity in its upperportion and having a tubular part extending down into the bottom portion of the receptacle with a valve chamber therein and forming a liquid delivery passage in connection withsaid cavity, a valve in said chamber normally standing in open, position and operable to close said passage by pressure from within the receptacle, means for supplying air under pressure to the upper portion of the receptacle, a liquid discharge tube extending from said cavity, and sampler means adapted to be removably mounted in and to close the upper portion of said-cavity and having provision for accumulating a small portion of liquid from the cavity for sampling purposes when such means is removed from the cavity, saidsamplermeans when mounted in the cavity being adapted to prevent a passage closing seating ofsaid valve.

PAUL B. BROWN.