US1959102A - Fluid discharge device - Google Patents

Description

y 13-5, 1934- G. D. HUMMEL' FLUID DISCHARGE DEVICE Filed March 11, 1932 INVENTOR.

I l. M H ww ATTORNEY- Patented May 15, 1934 UNITED STATES PATENT OFFICE FLUID DISCHARGE DEVICE George D. Hummel, Wauwatooa, Application March 11, 1932, Serial No. 598,175

1' Claim. (01. 299-95),

This invention relates to improvements in fluid discharge devices.

It is common practice, in the lubrication of vehicles, to spray oil on the springs and other 5 parts, the oil being delivered under pressure to insure proper penetration. -Heretofore,. it has been necessary in order to do this work, to maintain relatively expensive equipment including means for supplying the compressed air to the sprayer, and because of the costly nature of these prior constructions, small service stations and private individuals have been unableto utilize spraying equipment. The sprayers now commonly used are furthermore objectionable because of the fact that the air hose which has to be dragged along in use renders the device cumbersome to handle.

It is one of the objects of this invention to provide an improved discharge device capable of delivering oil or other fluid under pressure, which is of very simpleand compact construction, and which eliminates the necessity of utilizing a connection with an outside source of compressed air.

A further object .01 the invention is to provide an improved fluid discharge device in which a novel form of valve, and operating connection 7 therefor is employed.

Still another object of the invention is to provide a device of the class described which is so constructed that the fluid may be discharged either in the form of a spray or in the form of a fine stream, as required.

A further object of the invention is. to pro vide a fluid discharge device in which an air tight receptacle for the fluid is utilized, the receptacle being charged with compressed air by the use of an ordinary tire pump, in which one supply of air will suffice to discharge the entire contents of the receptacle. A further object of the invention is to provide a device constructed to discharge fluid in the form of a spray without utilizing the air to aid in forming said spray, the said construction therefore being capable of conserving the air within the receptacle to maintain the pressure at a desired point.

. A further object of the invention is to provide a fluid discharge device having a fluid open' ing provided with a-closure member, in which an, auxiliary valve controlled opening is formed in said'closure membertor the reception of the compressed air.

A furtherv objector the invention is to provide a fluid discharge device constructed to discharge of a fine stream;

charge eflectively even when the fluid supply within the receptacle is low, and up to the time when practically all of the fluid within the bottom of the container has been exhausted.

A further object of the invention is to 'proll vide a fluid discharge'device capable of use in the spraying of lubricating oils, disinfectants,

core oil, polish, exterminating fluids and the like, which can be sold at a small cost so as to be available to individuals for any of the above purg poses. a

With the above and other objects in view, the invention consists of the improved fluid discharge device and all its parts and combinations as set forth in theclaim, and all equivalents thereof.

10 .In the accompanying drawing illustrating one complete embodiment '01 the preferred form of the invention, in which the same reference numerals designate the same parts in all of the views:

Fig. 1 is a vertical sectional view of the device taken on line 1-1 of Fig. 2;

Fig. 2 is a plan view thereof; 1

Fig. dis an enlarged longitudinal sectional view showingthe nozzle equipped for the dis- Fig. dis asectional view takenon line of Fig. ii; andv Fig. 5 isaview similar to Fig. 3 showing the nozzle as it isused when a spray is desired.

Referring more particularly to the drawing. the numeral 8 deslgnatesa container, which is preferably cylindrical in shape, and which has top and bottom portions 9 and 10 respectively which are so secured to the body of the container, as at 11, to provide an air tight construction. The container is preferably constructed of metal capable o1. withstanding a considerable internal pressure.

The top of the container is provided with a filling opening surrounded by an-internally threaded boss 12. An externally threaded closure member 13 is adapted to be threaded into the-open-s ing and iscapable of effectively sealing the same. The said closure member has extending upward- 1y from the central part thereof a valve stem 14 which communicates with a longitudinal opening 15 extending through the closure member and communicating with theinterior of the can.

The stem 14 is of standard construction and is of the type used in valves for automobfle inner tubes, and is provided with the usual standard valve mechanism used in the automobile tubes,

the said valve mechanism being such thatit will admit air under pressure to the .interior or the no receptacle, but will act to prevent the escape thereof. The usual valve cap 16 may be threaded on the exterior of the valve-stem 14 to close the same.

A member 17 has one end soldered or otherwise secured within an opening 18 on one side of the container, and said member is formed with a longitudinal opening to provide a valve chamber 19. A nut 20 having an. intermediate shoulder portion 21, has one end in threaded connection with the outer end of the member 17, and said nut is formed with a longitudinal duct 22 which communicates with the valve chamber 19. A nozzle 23 having an interior chamber 24 is threaded on the other end of the nut 20.

The inner end of the member 17 is provided with an opening 25 within which one end of a tube 26 is secured. The said tube extends transversely across the interior of the container and has its other end secured within an opening 2'7 of a guiding member28. Said guiding member has its outer end portion secured within an opening of the casing which is diametrically opposite to the opening 18. The guiding member is formed with a bore 29 extending therethrough which alines with the bore of a packing nut 30, the said nut being threaded into the outer end of the guiding member from the exterior of the container.

A valve rod 31 extends slidably through the bore of the packing nut, through the bore 29 of the guiding member, through the tube 26,

and into the valve chamber 19. The inner end of thevalve rod is provided with a valve member 31 which is cooperable with the duct of the nut 20 to open or close said duct. A coil spring or the like 32 surrounds the valve rod within the valve chamber and is positioned between the valve member and the inner end of the member 17.

The outer end of the valve rod is pivoted as at 33 to an operating lever 34. Said lever has a downward extension 35 which is movable in a slot 36 formed in the upper part of the container handle 37. It may readily be seen that when the container handle is grasped, that the thumb of the user can beused to exert a downward pressure on the outer end of the lever 34. This will cause the projection 35 to fulcrum against the inner end ofthe slot .36. which will result in an outward pull upon the valve rod and opening of the valve. Upon release of the lever 34, the spring 32 will return the -valve member and rod to closing position.

The bottom of the member 17 is formed with an opening 38 and from said opening a metallic tube 39 depends. A flexible metal tube 40 has its upper end secured to the tube 39, and has its lower end positionable near the bottom of the container and formed with a weight 41. The

said weight will normally maintain the flexible tube in the position shown by full lines in Fig. 1. However, when the container is tilted, the flexible tube willmove, as shown by dotted lines.

The outer end portion of the nozzle 23 is preferably of reduced diameter, and externally threaded as shown at 42. Said outer end portion is provided with a bore 45, the inner part of which is conical in shape as at 46, and the tip of said conical part communicates through a pin hole duct 47 with the conical end 48 of the chamber 24 of the nozzle. A fluid diffusing member 49 is positioned within the chamber 24 of the nozzle, and the said member has a cylindrical portion which is of substantially the same diameter as that of the chamber 24. The outer end of. the member 49 is frustro-conical in shape as at 50, and flts within a part of the conical outer end 48 of the chamber 24. The other end of the diffusing member is also frustro-conical, as at 51, and has projecting inwardly therefrom a relatively narrow conical part 52. The diffusing member is formed with a plurality of grooves 53 which extend obliquely from the frustro-conical portion 51 to the frustro-conical portion 50, as shown clearly in Figs. 3 and 4. A cap 54 is arranged to be threaded on the outer end 42 of the nozzle 23, and said cap is provided with a pinhole duct 55 which communicates with a conical opening 56 Within the cap, the said opening being in alinement with the opening 45 of the outer end of the nozzle.

In use, the closure member 13 is removed, and the container is filled about two-thirds full of fluid. The closure member is then replaced and is threaded tightly in position to seal the container. Next, the valve cap 16 is removed and an ordinary tire pump or an air hose is connected to the valve stem 14 in the usual manner to force air into the receptacle. One standard model of the device is arranged to receive approximately one quart of fluid, and an air pressure of to 150 pounds. When the desired'pressure has been secured within the container, the pump is removed and the valve cap 16 replaced on the valve stem 14. The device is now in readiness for use.

By applying a downward pressure on the outer end of the lever 34, as before described, the valve a controlling the flow of fluid to the nozzle will be opened. The pressure of the air within the container has already forced fluid into the bottom of the flexible tube 40 and up into the valve chamber 19, and as soon as the valve is opened, this fluid will be forced through the duct 22 and 1 5 into the chamber 24 of the nozzle- Inasmuch as air is considerably lighter thanthe fluid which is used within the container, it will not mingle therewith, but will merely exert the required pressure. Thus the discharging fluid will not be 120 mixed with air. Ordinarily, an effective spray is obtained by commingling air with the fluid. With the present invention, however, this is not desirable because it is desired to conserve the air within the container so that frequent use of an air pump is unnecessary. It has therefore been necessary to devise suitable .means for so breaking up the discharging body of fluid as to produce the desired spray without having to use a commingling of air with the fluid. This has been accomplished by employing the diffusing member 49. As the fluid enters the chamber of the nozzle 23, it will be gradually forced toward the walls of said chamber, first by the, conical part 52, and then by the frustro-conical part 51 of 135 the diffusing member. Next, the fluid will enter, the obliquely extending grooves 53 and will travel to the small conical recess 48 in front of the diffusing member, through the duct 47 and out of the nozzle in the form of a spray, as shown in Fig. 140 5. If the diffusing member were not employed, the oil would form in a body behind the duct 47 and would emerge in the form of a small stream. The diffusing member, however, prevents the formation of this body of oil within the chamber of 145 the nozzle and causes the discharge in the form of a spray.

Sometimes, however, a spray is not wanted, and a fine stream is preferable. In such cases it is merely necessary to thread the cap 54 unto the '159 outer end of the nozzle as shown in Figs. 1 and 3. When this cap is used, the fluid discharged through the duct 47 will form in a body behind the duct 55 of the cap to cause discharge in the form of a flne stream. Thus, a very simple arrangement has been provided which makes it possible to discharge fluid which is not mixed with air, either in the form of a spray or in the form of a flne stream, as may be desired for a particular type of work.

One charge of air is obviously suflicient to cause discharge of the entire contents of the receptacle because of the fact that none of said air is permitted to escape. Due to the use of the tube 40 which extends to a point near the bottom of the container, practically all of the oil from a single filling can be used, and even when the container is tilted, the flexible tube 40 will swing by gravity in a desired direction so that it will always stay in a position where its lower end is surrounded by the fluid until there is practically no fluid left. 4

An important feature of the invention resides in the simplicity of construction. The fluid valve and stem therefor, it will be noted, is positioned to extend transversely across the upper part of the container, the members 17 and 28 being directly opposite one another. This construction makes assembly very simple, and also makes it possible to entirely remove all of the valve mechanism for repair purposes. when this is desired, it is merely necessary to remove the.

of a single opening in the top of the can for use of the fluid filling opening and the air opening. This is made possible by forming the valve stem for the reception of the compressed air in the closure for said filling opening.

Due to the compactness of the device and to the simplicity of its construction, it can obviously be sold for a small price so that it will be bought by people who may have only occasional use for a device of this type. The compactness also renders the device simple to handle and makes it useful for applying fluid in inaccessible places.

Although only one form of the invention has been shown and described, it is obvious that various modifications and changes may be made, and all of such changes are contemplated as may come within scope of the claim.

.What I claim is:

In a fluid discharge device, an airtight elongated upright-type container having an'opening for receiving fluid, a closure'for said opening, an air valve in connection with the container for admitting compressed air thereto, a discharge nozzle projecting laterally from a side of the container, a valve member controlling the flow of fluid through the nozzle, a valve rod extending transversely across the interior of the container from said valve member and having an end projecting through the side of the container opposite to the nozzle, a handle in connection with a side of the container positioned adjacent the projecting end of the valve rod and having a slot in a portion thereof, and a thumb lever pivotally connected with the valve rod above the handle and having a part movable within the slot of the handle and engageable with an end of the slot to cause movement of the valve rod.

GEORGE D. HUIMMEL.

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