US2284316A - Liquid dispenser or the like - Google Patents

Description

May 26, 1942. 'I 1 P. GLASS 2,284,316

L IQUID DISPENSER 0R. THE LIKE n A Filed Nov. 24', 193s 2 sheets-sheet 1 NV OR #Y L? uw l ATTORNE May 2, 1%42. J. P. GLASS LIQUID DISPENSR OR'THE LIKE Filed Nov. 24, 1939 2 Sheets-*Sheet 2 AT1-ORN outlet, thereby preventing Vinterruption -of the..

'Patented May 26, 1942 Unirse STATES eMENr OFFICE i LiQUD nrsrisslf'rne LIKE n Y I John P. Glass, AWest New York, N. J., assigner to The Aeroil Burner Company, West New York, N. J., a corporation of New Jersey Appiieation Nevember 24,1939, serial No. 306,009

s claims. (c1. 15s-#79) VThis invention is a novel improvement in dis- 5 pensers particularly adapted to supply liquid under pressure to liquid fuel burners, or spraying. devices, or the like; and one object ofthe invention is to provide a dispenser consisting of a pump adapted to be inserted intoacontainer, the pump comprising a'pumping chamber and a pressure chamber having a syphon outlet together with a relief valve manually operable from. thev exterior of the dispenser adapted to release the pressure in the pressure chamber and divert the liquid therein back into the container, so as to cut off the flow of liquid from the syphon outlet.

Another object of the invention is to provide a dispenser of the above-type inv which the cus-` tomary special liquid container is dispensed with, and one or more light weight inexpensive ordinary cans, in which the spraying liquid is sold ,in the trade, having the usual threaded lling necks may be utilized to serve as the liquid container of the apparatus, said pump proper having a ring nut on its'exterior adapted vto engage the threads of the filling neck to secure the pump VVwithin the container. My invention Vthus elimitank is being relled. This greatly reduces the eifort required to carry the apparatus, and eliminates the delay caused by stopping the 'burner While the tank is being filled.

A further object is to provide means on the interior of the container for steadying the lower end of the pump inserted therein down through th .lling neck.

A further object of; the inventionuis to prodisconnected fromr any empty container and a full container substituted in place'thereof without interrupting the flow of liquid from thepumpV burning or spraying operation, and permitting use of a .series of small lightweight containers with the pump instead of one large heavy container.

A still further object is to provide a dispenserin which the necessity of using a control' or shuto Valve inthe connection'between the outlet y and the burner or spraying device is eliminated,

"of parts, for which protection Amentary replaceable fuel container. Fig. 2 is an enlarged vertical section through one form of dispensing apparatus.

thus accomplishing better control and quicker cut-off than heretofore obtained.

A still further object of my invention is the reduction of the eiort required to supply the fuel which'gresults from pumping, the liquidv rather than the airy to displace it, and makes it possible l for the operator to keep pressure by pumping without setting the apparatus down.

Still another object of my invention is kthe elimination of any possibility of the usual oil hose being left full of liquid under pressure after use,

with therresultant rapid and unnecessary deterioration of the hose. i Y

I will explain the invention with reference Ato Ithe accompanying drawings which illustrateseveral practical embodiments thereof to enable others familiar with the art to adopt and use the same; and willsummarize in the claims the novel features of construction, and novel combinationsV is desired.

In said drawings:

A" Fig. 1 is an elevation, partly in section, showing my novel dispensing apparatus applied to a liquid'fuel burner, and also showing a supple- Fig. 3 is a vertical section on the line z -3, rig.

2, showing the 'relief valve in normal closed position.

Fig. 4 is a View similar to'rig. 3 but showing the Arelief valve opened, either manually or under the vide a dispenser adapted to be inserted into the 4K0 ycontainer and so arranged that the pump may be the shut-off being effected in the pump` itself, 55

influence of excessive pressure in the pressure chamber.

Fig. 5 is a vertical sectionsimilar to Figf`2 showing a modied form of dispensing apparatus. Fig. Gfis a horizontal section onV the line 6--6, Fig. 5, showing the inlet and outlet ports vfor the pump and pressure chambers.

. Fig. 7 isr a vertical section but showing thereliefvalve, of the formV shown in Fig. 5, manually opened. A

As'shown in Figs. 1 toV 4 inclusive, the dispenser pump, per se, is adaptedtobe utilized connection with one or more standard containers VI for liquid fuel Vor the like to supply liquid under pressure toburners or'spraying vdevices vortlfie like', and the pump is adapted to be inserted down through the threaded` lling neck ,la of the container and secured therein. Preferably container walls of member 2 are perforated as at 2a in order The dispenser pump preferably comprises an' outer cylindrical wall 3 Yof diameter somewhat Asmaller than that of the'lling neck Ia and' slightly smaller than the cup 2, which casing is Yinserted down through the neck Id, as shown in Figs. l and 2. l The upper end of casing 3 is preferably providedwith a flange 3a adapted to 'seat` upon the top of the lling neck, anda ring nut 4 of suitable material is provided on the-wall'3 I g l -able11iquid dispensing device, instead Vo f to a having a threaded portion engaging the threads of the iilling neck and having ashoulder overlying the flange 3a, whereby when therringlnut. is screwed down, the flange 3a will be urgedgto-V wards the end of the iilling neck Ia. A packing washer 5 of suitable material may loe-interposed n -shaped head 6 externally threaded at its.l upper ingthe liquid-to be fed under substantially constant pressure through the syphon outlet pipe I'I Vto thev liquidfuel burner I8 or to the liquid spraying'device (not shown) attached to the outlet I'I. Y.

AsshownY inFig. 1, the pipe I'I may be at- 'tached directlyA to a coil or retort-type liquid fuel burner I8, which typeof burner is Well known in the'art and needsno particular description herein. However, vthe pipe II maybe connected to a liquid spray head (not shown) or other suitliquid '.burnerl. It is usually customary in such "assemblieswith liquid burners or sprays of the termediate thepump or dispenser and the burner or-sprayer., -I-Iowever, `I provide a novel means wherebythis valve may be entirely dispensed with. Y In the plate I0 is an opening I0a, normallyrclosed by a cap IOb loosely vmounted upon the lower endof a'manually operable relief rod I3 contracted end '6a and provided with `a ,cap `1` f having a` central'aperture through whichfzthe pump rodl 8f passes.for thepurpose hereinafter described, said rodlaving aknob'b on' its vupper end( Extending downwardly through the head 6 andwall 3 is acylinder 6b in 'which `the piston 8a-of rod 8 operates. H

At the lower open end of cylinder 6b is a plate 9V having downwardly. projecting ffia'nges. fitting within the open lower end .of the wall 3, and

plate 9 has a raised' central portion 9ct (Fig. 2) tted within the lower end of the cylinder 5b and* securely connected therewith in an airtight manner.k Securely tted withinfth'e sidelanges 9 opposite the` cylinder Gbxisa circula'rvalvef Aopening 9b and cooperatingwith said opening is a downwardly opening ballV valve llfnormally urged towards the'opening. by a spring I2 where-1V by the opening 9b will be normally closed.' tending through aligned openings Ain the plates 9 and I0 is .artube I4 entering the lower. end' of cylinder 6b. VAt'. the upper end of the' tubeV I4( is openings 9a: establishing constant communication with the pressurev chamber of the pump'. I

In the head 6 above thenut 4 is an outlet pipe I 1 having a branch Ila. extending down between extending` down throughA a .pressure `retaining 'sleeve' I3a} within thecasing 3 'from a point; ad- 'ja'cent'the cap 'I of the. head E. Normally' the -cap Illb is closed by Vaction of spring I4. Figs. 2

and 3'show the normalclosed'postion of the cap IIlb. `Whenever, however,v it isfdesired'to stop vthe ilow of liquid, from the pressurechamber tothe `burnermIIibr spray head,.it is merely necessary'to manually depress therelief rod I3 to iiunseat cap IIlb; as shown in Fig.'.4,thereby re.-

` I'he operation of the'dispenser shown in Figs.

1-4 is .as'follows: The liquid enters the pump cylinder 16o, .through tubeI I4 past the check valve I5 ongtheppstrokeof'piston 8a, and Vis ex- 'ppeueq 'through thel Quuet 9b ,past theib'au check valve' I I` fon the piston clownstroke.,A l From thence 'the liquid flows intothe airtight pressureY cham- 'ber. l5 few. piston strokes is `sufficient ,to build Jupgenough pressure to operate the burner I8.

Since the liquid is fed to .1 the burner from .the

"syphonfoutiet II, all the air originallyin-- the pressure vchamlo'eristrapped` atthe' top of the o pressure' chamber and forms an'air 'cushion Awhiclfrmaintains anapproximately .uniform pressure of liquid in4 thevpressure chamber.' In case v'the piston -is operated too vigorously, the excess thewalls 3 and 6b and 'terminating a'tfapoint Vsomewhat above the plate S, pipe I'I thus operating as a syphon outlet. By the aboveconstruc- .tion when .the piston 8a isl being raised inthe cylinder Ibby ythe rod v8, the `liquid in the conliquid Ain the pressure `chamber will escape past the spring pressed ,release byvDSS cap 10b, which will be set for` the maximum operating pressure of the burner, and ,cannotfbe-jfurther" adjusted.

The piston may be stopped, and the tra'ppedalr in thevpressure chamber will maintainaA'gradutainer will be drawn through the openings'gZai.`

in the cup 2 and will be drawn upwardly through the tubefl4 past the inlet valve I5 and intdthe cylinder 6b, inlet valve I5 beingrai'sedagainst stroke theoutletV ball valve .I I Awill remainV closed.

When' the'lpistonis' being depressed, theY inlet valve I5 will Vbe maintained .'closed, ar1d. the outlet any diminishing "Pressure -Q11 rhepliquid pfed. to

the 'iblimer'g fr Several' minutes: Se. that. if'A .the pistonis again started within such time' L limit, the burner'- -will continue'ft'o operate withoutlthe necessityof '1el ighting,l or as has s'oretir'e's for'. merly'i been 'the Vcase ofev'enlvhaving 'to' .ref-heat the torch.' 11n addition,v means 'has' been: progvided for im'anuallylopening the pressure'v release by-pa'ssecap'lrb. utilizing the rodl I3 in the` tube ball 'valve II will beunseated against 'the' 'action of'spring I .2by the pressureof'the liquid within.

the cylinder `5cl. and th'e liquid will' passlout 'ofthe cylinder and into the' chamber-betweenthe platesv 9.and..l0, and will pass upwardly through the 'opening Ba: into the pressurejcha'mber formed'between the wall3jand cylinder. 6b,.the

YISa, which latter serves to give an airtightpas- 4 'sage through the pressure chamber` to the rod I3,

`whenever therod isi depressed'. This. causes all .pressure within thepress'u're' .chamber tofbe released, the'lifquidoving bck into the .container 'I-. Furthermore, the pressurejduelt thelg'a'ses 'of the heated liquid fuel within the coil or retort which lrod unseats` the pressure release Vcap IDlJ of the burner i8, forces all the fuel out'of the burner back through the connecting means into the pressure chamber and thence into the conthe form shown in Figs. 2.' to 4, and like refer# ence characters on parts in both modifications denote like structural parts. VIn this modification, however, the relief rod for operating the relief cap lb of Figs. 2 4, inclusive, is omitted, and the piston rod serves: also as the relief rod. The lower end of the cylinder 6b is directly connected to a valve body having a ver-ticalbore 2l extending therethrough.communicating with the lower end of the cylinder 6b. In the bore 2l is an intermediate enlargement 22 containing a downwardly opening spring-pressed ball'valve 23 normally closing the upper end of bore 2 I At the lower end of the bore 2l is a further enlargement 24 containing a large ball valve 2da normally closing the lewer end of the bore 2l, said ball being normally held in place by means of a `leaf spring 23 having its ends seated on inwardly projecting ears Z'la en an inverted cup-shaped member 2T having a neck connected by screwthreaded engagement with the exterior of the valve body member 2li, the outer periphery of member 21 being fitted in an airtight manner Within the lower end of wall 3 to close the lower end thereof. Suitable packing 23may be used to form a watertight connection. Between the balls 23 and 24a is a spring 29 normally-holding the ball 23 seated in position to close the upper end of bore 2l while the leaf spring 26 normally holds the ball 24a seated to close the lower end of bore 2i.

Extending upwardly through valve body 2D around the bore 2| is a series' of vertical inlet ducts 30 of small diameter (three being shown in Fig. 6) for the purpose of permitting free passage of liquid from the enlargement 2li directly into the lower end of the cylinder Bb. Extending laterally of the'enlargement 22 of the bore, is a series of outlet ports 3l (three being shown in Fig. 6) for directing liquid under pressure into the pressure chamber situated between the walls 3 and the cylinder 6b. In the upper end of the valve body 20 is a recess 22a containing a valve washer 32 adapted when in lower position to close the intake ports 30; and above the washer 32 is a fixed washer 34 disposed between the lower end of the cylinder 6b and the valve body 29,'said washer 34 maintaining the valve 32 in position in recess 20a while permitting axial movement thereof in said recess.

In this modification the lower end of the pis-v the head 6 a pair of lugs 38 or lateral protuberances normally engaging the upperend Ea of head 6 when the piston rod is depressed and preventing the rod from being depressed sufiiciently to unseat the ball valve 26a. When however itis .desired to lunseat the valve 23a the piston rod 8 is rotated until the protuberances 3B are disposed opposite slots 439 in the upper end 6a of head 6, thereby permitting the piston rod to be depressed below its-normal pumping range and permitting the extension orgprojection 3l to unseat valve 24a.

InA operating the modification ,shown in Figs. 5-7, inclusive, when piston 8a isbeing raised lthe liquid from container l is drawn throughthe holes 2a in the cup 2 and enters the lower enlargement 24 ofthe bore 2| in the valve body 20 and passes upwardly vthrough the inlet ports^3 raising the valve washer 32, Vthe liquid thus passing directly into the cylinder (5b4 below, piston 8a..l During `this time both ball valves 23- and-2da remain seated against their respective shoulders in the bore of valve body 20. Assoon as the upward motion ofthe .piston ceases, the valvev washer 32 drops covering thev intake ports30. This washer is prevented from rising too high by the sealing washer 34 disposed above it. When the piston is being depressed, the fluid pressure in the cylinder will unseat the smaller ball valve 23 against the action of the spring 29, while `the valve washer 32 is seated to close the inlet ports V 3B, and the liquid passing through the bore 2 twill be directed laterally through the outlet ports 3i A and' directly into the pressure chamber, and

the pressure in said chamber will cause the ward motion is prohibited, and movement of the piston will be confined withinits ordinary working limits.

When the operator desires to shut off the sup-V ply of fuel to the burner, he aligns the protuberances 38 with the slots 39 in the head 6 so that the piston can be further pushed down into the position shown in Fig. 7. In this position the extension 31 on the pump rodV 8 first unseats the exhaust check ball 23 and then jams it downward against the pressure release check ball 2da,

unseating thelatter'so that all pressure from the pressure chamber is released, and the burner I3 extinguished as before mentioned.

I claim:

1. A dispenser adapted to supply liquid under pressure toliquid fuel burners or spraying devices or the like, comprising a container, a liquid pump in said container consisting of a pumping lchamber and a pressure chamber surrounding the pumping chamber and having a syphon outlet, with check valve connections between the pumping chamber and pressure chamber; a normally closed relief valve between the said pressure chamber and container, and means for opening said relief valve to release the liquid from said chamber back into the container to stop the flow of liquid from the outlet, said relief valve comprising a spring-pressed ball in the pressure chamber disposed below the check valve in the lower end of the pump chamber, a piston i rod in said pump chamber, and said means comprising a projection on said rod adapted in one position of the rod when`depressed to i' depress the check valvesufliciently to unseat saidbalhfV 2. vA dispenser adaptedrto supplyliquidunder pressure to liquid fuel-burners or spraying de# vices or the' like, comprising a containena liquid said pressurechamber and container, and`means forropeningfsla'id relief valve' tollreleasethe liquid from'said chamberV back into `the container to stop the'flow of liquid fromV the outlet, said relief valve comprising` a spring-pressed ball in the pressure chamber disposed;be1owthe`check valve in thelowerfend of the pump chamberja piston rodin said "pump chamber, and said means comj vprisingaV projection on said-rod adaptedin one position oftherod when' depressed to depress rounding. the pumping chamber and y having a `syphon-outlet,`with check valve connections between the pumping chamber and pressure chamber; means interconnecting the pump and filling neck Vfor retaining the pump in the container;

Y a-normally closed relief 'valve between the said pressure chamber vand container; and means for opening said relief valve to release the liquid from said, chamber back into the' container to lstop the ow of liquid from the outlet, said relief .valvef'comprising a spring-pressed ball in the l pressure'ehamber'disposed' below the check valve in theglower endv o'f the pump chamber, a piston rod in said pumpV chamber, and said means com prsing a projection on said rod adapted in one position ofy the rod when depressed to depress the check valve suiciently to unseat said ball; and limitingl means on the pistonv rod normally A,con-

I ning the piston rod'movement to the limits of the pumping stroke except when in the one position of the said rod,l i

the check valve suiciently to unseat said ball; f and limiting means oni-the piston'rod normally*y confining the piston rod movement totheglimits of the pumpingstroke except when inqthe Vone position of the said rod. ,I y

3. A liquid `dispenser adapted to supply liquid under pressure to liquid fuel burners or Yspraying devices or the like, comprising a container having a filling neck, a liquid pump inserted down f through the llingneckfand vconsisting of a pumping chamberanda pressurel chamber sur"- rounding the pumping chamber andhaving a syphon outlet, withv check valve connections between the pumping chamber and pressure chamv ber; means interconnecting the pump and iilling neck for retaining the pump in the container; a normally closed relief valve between the said pressure chamber and. container; and means for opening said relief valve to 'release the liquid from said chamber Yback into the container to stop the ilow of liquid from the outlet, said relief valve comprising Va spring-pressedv ball in theV `pressure chamber disposed below the check valve Vin the lower end of the pump chamber, a piston rod in said pump chamber, and said means com- Y prising a projection on Vsaid'rod adapted in one position of the rod when depressedto depress the check valve sufficiently to unseat said ball. Y.

4. A liquid dispenser adapted to suppl'y liquid under'pressureto liquid'fuel burners orspraying devices'or the like, comprising a container having a lling neck, a liquid ypump inserted. down through the lling neck, yand consisting of a A pumping chamber and a pressure chamber sur-v v5. A dispenser adapted to supply liquid under Ypressure to'liquid fuel burners or spraying de- Y vices orthe like, 'comprising a container, a liquid pump in said,v containerconsisting of a pumping chamber having a piston rod and piston; a pressure chamber surroundingr the pumping chamber and having a syphon outlet; a valve body closing the lower endsof both the said chambers and *having inlet Vmeans for the pump chamber, and having outlet means discharging from the pumpving chamber into the pressure chamber; a downwardly opening check valve for normally closing the Youtlet ports; an upwardly opening check valve normally' closing the inlet port; a downwardly'opening spring-pressed relief valve in the valve bodybelowthe outlet port check valve;

l andjaprojection on the piston rod 'adapted in one rposition of .thevrod when depressed to depressthe outletportcheck valve sufficiently to junseat therelief valve and release the pressure fromthe pressure chamberback into the conchamber.

tainer to stopthe ow of liquid from the outlet.

V6. Ina dispenser as set forth in claim 5, said inlet means comprising ports arranged in an an- Vnular series around the outlet means; and said upwardly opening check valve comprising ya washer having a central opening in way of the outlet means, said washer being confined for vertical movement within a recess inthe upper end 'ofthe valve body, below -the connection of the Vvalve body with the lower end of the pumping JOHN P. GLAss.-

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