US1771407A - Siphon pump - Google Patents

Description

July 29, lso.

G. v. GAVAZA SIPHON PUMP Original Filed March 2, 1927 `Patented `luly 29., 1930 UNITED` STAT ES PATENT `f."l'"`1Cl-" GEORGE v. GAvnzA, or `convenuiruissiiciru'sncnusfAv sIPHoN PUMP "Original application mea'narch 2, 1927, serial No. 171,984. Dividedk alla this appngation med october, 111,

l v v fiez?. seriainuaznaisv; v 'f The present invention: relates to pumps 1 and more particularly torpumps which are `used to draw liquid into the long legs of siphons.` l

is generally used in pumps of this type, with a combined piston andvalve whereby: liquid .maybe :drawn into fthe cylinder from the Source of supply and held therein in readiness for'use.`

To thefacco'mplishment of this-object, a

feature of 'the' invention contemplatesthe provision, in a pumpadapted to be connected]` y to the longlegoffa siphon provided with a cylinder having an inlet, an outlet, anda: f :valve seat adjacent the outlet, of a'piston rod, r

and a piston secured thereto movable from ai L'position adjacent the inlet to a' position ad- 2o jacent the outlet tofill the cylinderwith liq-i uid from the source of VVsupply and also mov- 4 able into engagement with the -valveseat to preventthe lowo-f liquid throughthe outlet.

Broadly considered the piston may be con-1 structed of any suitable material. The use `of aV leather piston is disadvantageous, however, because itis not 'flexible enough to ac- `commodate .itself to restrictionsin the hol-` low cylinderv due to the dents Vcausedjby the 3o accidental dropping of the cylinderand beto accommodate itself to restrictions in the cylinder caused by dentsfand which will not" i shrink in `size through disuse.

To the accomplishment of this object, an-

`4:0V othersfeature of the present invention con-" .45 rubber piston secured thereto and movable v within the hollow cylinder from `a position `the sourceof suppl `lwashing machines,

lon automobiles, etc.

:sponge-rubber piston maybe used merely to ton as afvalve in accordance withtheprinci- 5 The principal object of the present inven-g` l tion is to provide the hollow cylinder, which pal object ofthe present invention.

Qtherfeatures ofthe invention vrelate Vto certain devices, combinations and arrangetion will be'readily understood from'an inspection of the accompanying drawings showing the best form 'of the'invention` at present known to thelinvent'or, in which,

'Figurel is an elevation of the pump adaptedtobe connectedito the long leg ofa Siphon;

Fig. 2 isa sectional elevation showing how i .the combined piston and. valve is unseated from the lvalve ,seat through. engagement With the mouth of a bottleto bejlled, `f f Fig;V 3 'fis a" detail in `sectionalfelevation showing the piston engaged*with* the `valve` l @,ynsV

Plume j "This application is a division ofmy appli-.d cation filed March V1927,1Serial No.` 171,984, p Patent No. 1,666,850.,` causeit shrinks in 'size as it dries through dis- 1 seatgand Y Y. t ,e Figl isanelevati'on showingthe connected toj'the long leg of acsiphon.

` d Referring "to the drawings, the pump 5`(Fig. V4) is adapted j Y tobe connected to the long legl6 ofa siphon, Accordingly, another object of the present invention is to provide the hollowl'jcylinder v:us with a piston which will be flexible enoughv theshort leg T o flwhich'is inserted into a source of liquid Vsupply such as the barrel8.

ments of parts `hereinafter described and A' then'set `forth broadly in detail in theap- V pend-ed claims which f possess advantages aquariums, "fish-store tanks, washA boilers,

batteries, `gasoline tanks The pump 5 comprises a cylindrical barrel llgin order" to;` filter`- the` liquid 4,flowinginto whats/linden adjacent the inlet toa positionadjacentthe """-*TheotheI'endofthe cylinder 9isenlarged outlet towfillfthe. cylinder with liquid froml Aby `vmeans l of la. flange-,1 2 and this" flange j is '9 whichis screwithreadedon' oneend to rel ,Y ceive an inleticaplO which receives the rub- -ber" tube `comprising theV rlong v ,leg "c6 of the siphonQ'The inletllO carries a4 filterscreen screw-threaded` :to receive the s,th'reads` on an f "-olitletgcapla The 'outlet clap 13 is shaped cylindrical block of sponge-rubber 19 inter- V posed between two metal washers 2 0 and 21, smaller in diameter than vthe -s'pongefrubber- The block and washers are held in place on the shoulder 18 by a headed screw 22'which fitsinto `the upper end of the hollow rod 17 The screw 22 closes the upper end of the ho1- low rod 17 so, in order to permit liquid to Tiiow into thehollow rodf 17,. it .is provided with four openings 23 (Figsg 2;and 3).

YThe piston19 is movable from` the dotted` line lposition OfFig. 2, adjacent -the inlet kto the-cylinder, to a position where the Vpiston I engages the valve seat 15in the chamber 14 I `During thismovement the `piston creates. a: condition of yunbalanced pressure between the interior kof the cylinder and the surface oftheliquid inthe source of supply,

thus causing liquid tofflow through the s1- phon and fill the cylinder. The liquid is prevented from iowingrout of the cylinder 9 by the piston 19 which. acts as-a valve engaged with the valve seat 15.A

In order to unseat the piston valve seat 15 and thus permitli'quid to flow from the chamber 14 through the apertures 23 into the hollow rod 17 from which they vbeing elast1c,*will'yield enough to` permit 1t liquid vmay be discharged into a bottle shown in construction lines in Fig. 2, the tube 16 carriesfarslidingsleeve 24 providedwith a ,seriesiof-integral inturned prongs 25 which .extend through elongated openings 26.inA the tube 16 and engage the exterior ofthe holf Y low rod 17. The hollow rod 17V isprovided with an Vannular groove 27 into .which thev prongs 25 .springy (Fig. 3) when the piston 19 engages-the valve seat 15. The sleeve 24 is provided with a bell-shaped portionY 28A constructed to engage the mouth of the bottle i to be filled and hold the :pump Vupright thereon. The bell-shaped portion 28' is provided with aseries ofair holes 29 and a series of nodes 30 `to insure the free exit ofair'from thefbottle duringtheifilling operation.'V

When the piston 19 has been Ydrawn from v the dotted line` positionrof 2 into the position of Fig. 3, the cylinder is illed with liquid fromthesource. of supply, Ybut thisliquidV is prevented fromflowing through the apertures 23 into` the .hollow piston rod 17 with the-valve seat. .When the sleeve 24'en'- gagesV the mouthjo'f the bottle, .into which the hollowV rod 17 extends, theweight of the parts'lcauses the sleeve 24 .tomoveY-relatively Vto the tubek 16from the })osition of .Fig.f3

to gthev position oflFi'giiv 2,.y thereby unseating 19Y'from the of liquid until'thepump is again positioned on anotherbottle whenthe valve is reopened.

In order to prevent foaming in the bottle during the filling operation, the open end of the hollow rodv 17 lis provided 1with. a discharge tip 31 having two slots 32 which discharge the liquid laterally of the hollow rod.

.'VVhen it is desired tol produce a continuous How of liquid from the cylinder 9, the piston 19 is elevated slightly'V from its seat on the valve seat 15 and the sleeve 24 is positioned so that the prongs thereon,l instead ofengaging the annular groove 27, grip the exterior of the hollow rod 17 belowithe Lannular groove 27. .This action causes the ,material of the sleeve 24 forming the bases of the prongs .25

to exert a frictional grip 'on the tube 16, thus holding the tube and sleeve ,fromfrelative movement. l/Vhen -usin'g thepump in the manner' describedto produce a continuous ilow,the tip 31 maybe removed tov obtain an unrestricted flow'from the open'endof the hollow rod17.

. It will. be Yreadily Yunderstood by those skilled in: the artt-hat even though the cylinder isdented by accidents the s'pongerubber,

' class ofdevices .and with ythe general objects ofthe present invention in view, that changes ,may be made inthe details ofstructu're, the

1 described' and illustrated embodimentl therelvalve .'seat. adjacent theV outlet, Iof ,a f pistonf4 .rodi and a piston secured thereto, movable `VAfrom a position adj acent thevinlet to ay posi- Y bythe piston which acts as a valvejengaged tion adjacent vthe outlet in'toengagement with Ythevalveseat to ll the cylinder with Vliquid kfrom-the'source of supplyandy prevent-thef flow of zliquid through the: outlet.

. 2.In2aqpump adapted ,to'xbe connected to the long'leg 'of afzsiphon, fthe. combination with a cylinder subj ectyt'ofmalformation havf. :ing 1 811i inlet, 1and;ranwoutlet-,aotapistonu rod,

` and a piston secured thereto, movable from Y and a sponge-rubber piston secured thereto, movable from a position adjacent the inlet to a ositionadjacent the outlet to fill the cylindjer with liquid from the source lof supply and automatically accommodate itselfto the malformed cylinder during said movement.

3. In a pump adapted to be connected to the long leg of a Siphon, the combination with a cylinder having an inlet, an outlet, and a` valve seat adjacent the outlet, of a piston rod, and a sponge-rubber piston secured thereto and movable from a position adjacent the inlet to a position adjacent the outlet into l engagement with the valve seat to fill the cyl inder With liquid from the source of supply and prevent the flow of liquid through the outlet.

4. In a pump adapted to be connected to the long leg of a Siphon, the combination with a `cylinder having an inlet, an outlet, and

an enlarged chamber adjacent the outlet, a`

valve seat in the chamber, of a piston rod,

a position adjacent the inlet into engagement with the valve seat to fill the cylinder with a liquid from the source of supply and prevent the flow of liquid through t e outlet.

5. Ina pump adapted to be connected to the long legv of a Siphon, the combination with a cylinder having an inlet, an outlet,

and a valve seat interposed Vbetween theV inlet andthe outlet, and a, piston rod,

of a piston on the rod, movable in con-V tact with the cylinder in one direction to fill the cylinderfrom the source of supply, r

` fand also movable at thelimit of movement in said direction. into engagement with the valve seat `to prevent the flow ofliquid Y through the outlet.

6. In a pump adapted to be connected to the long leg of a Siphon, the combination with a cylinder having an inlet, an outlet, and a valve seat interposed between'the inlet'and the outlet, and a piston rod, of a cylindrical piston having its peripheral surface movable.

in contact with the cylinder to iill the cyl inder With liquid from the source of supply and having one of its yend faces movable into engagement with the valve seat Vto prevent the flow of liquid through the outlet.

In testimony whereof I have signedmy I name to this specification.

fno

Y GEoRGEvGAvAZA.

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