US1542584A - Liquid-dispensing device - Google Patents

Description

June 16, 1925.

W. H. ROSE LIQUID DISPENSING DEVICE Filed OCT. 6, 1924 A; ATTORNEY Patented June 16; 192 5.

WI LI M; mnose; o-rrmnsny our; NEW denser LIQ ID-Dispensing; DEVICE.

These resevoirs havea lower annular; neck which is placed Within 'and supported by a collar-like metallic; support. The jointure between; thev reservoir, neck" and the. metallic collar. must be .firm. and}. liquid; tight. and; for these; reasons. the. two elements are. usually firmly cementedl flgsther... I

The valve elements in these deviees; are frequently of. soft rubber, and; the. frequent use otitlie device res lilts. in. rendering the valves. inoperative (gr-only partially effective, and hencegthey' mustibe replaced with more or lessfrequencyi In, the. usually employed devices, of this charecter it is necessary tobreak the; joint.- ure. between. the. glass, reservoir. and the; collar support in order to renovetlie. useless members and. replace. them with. new. ones, and as this jointure must be a firm. one for reasons. previously stated; the severance.. of theatwoparts very frequently. resultsin the breaking off the glassreservein Inaddition, every time. these tw onpa rts are separated, a. new jointure. must-.ibe made resulting in the possibility of imperfect sealing. It is; evident, therefore th-at a liquid dispensing device in. Which-the 'valyescan, be removed and. replaced; Without breaking the, sealed engagementfbetween the; glass reservoir and. the. metallic support would result in greet economy andiefliciency, Experience has shown thatthe. usual means for'compressing the. bag reservoir, consisting; of a; separate plunger; usually. of a, metallic character, which, is operated by impinging. it upon the bagihasiserious. ob-

jectionable; features Besides the. liability H. Rose, a

of; the severalinoving parts becoming weak and ineffective through use, they. have an injurious effect upon tliebag. itself, as their continued abutmentupon the same portion, or spot, of the bag weakens and finally punctures it.

. Further, I have. found that more effective results. can be obtained .when the bag reservoir practically abutsupon the sides of. the support, a smaller movement. of; the, plum gel; 'is, necessary and. the contact incident to the pressure is thusbroughtupon pr ctical; ly allpa-rts of the bag.

My device acomplishes all of these-vain.- able, results and presents: a. means. whereby the valve elements may. be removed: and replaced withoutv breaking tliereservoir and support ointure and whereby the wear: upon the, .bag; reservoir. is reduced 3 to a mini mum. A i

I have described? my devicev with; special referenee. totlie dispensing ofliquid soaps but it is, evident thatfit meybe, employed witliothen liquids, r

In theaeco npany ng drawings, illusrat-.

ing modified forms of the. deviee of my invention; similar. Parts are. designated; by similar numerals. L i t Figure 1; is aside view. ofsone fornrofr my device.attecheddoawall; j

Figure. Q isa, vertical section through the supportingunember of Eigure l. Y i

Eigure 3 is a, top. plan viewof. Figure 1 partly broken away for clearnesslof expla n,- ation,

Figured is a vertical section. of; a modiffied forinof nly device, i i F'gure 5.15, a vertical section of: another modified formofinydevice, V i r Till e pentio lar fornn of the device of my invention sl own'in I+?igu1:es l-l 2' and 3: of the. accompanying drawings comprises a metallic; support composed ofitheerntbrack et lllcapable ofl attaehment tozawallillthe ar nnnemher'being extended intota-n annular reservoir support l2 w,hieh is e vtendeddownwardly into the restricted annular member .13; having; an opening. 14 in the, side thereof and an opening ltipinthe bottom thereof. The inner,- face of the member- 12. is inter; nally' threadedto mesh with the externally threaded neck- 16- of the liquid: container 17. j An annular disc 18 inadeofi hard rubber, or other: suiteblematerial, has.- a centrally p s i ned? p ni g and e. de nv dly aseaese extended annular neck 20, the disc 18 resting upon the upper face of the shoulder 21 of the member 12.

Positioned within the opening 19, and held therein by frictional contact, is a soft rubber annular flap valve comprising the annular tubular neck 22 with a mushroom shaped bottom 23 cut at 2 1 to form a flap valve, which will allow the downward pas sage of liquid therethrough but will not allow the upward forced passage of liquid.

Positioned between the side 13 and the neck 20 is a soft rubber baglike container or reservoir, formed by the annular side 25 and the bottom 26, the latter having a slit 27 therein which will remain closed under normal conditions of operation but which will open and allow of the outward flow of liquid from the bag reservoir when pressure is exerted upon said liquid. The side 13 is extended into, or is integral with, the plunger 28, having a concave end for convenience of use and extending through the opening 1 1 of the side 13.

The bag reservoir may be retained in place by frictional contact between it and the members 13 and 20 or it may be cemented therein;

The modified form of my device shown in Figure 4 is similar to that described above, the use of the hard rubber disc 18 being rendered unnecessary by prolonging the shoulder 21 inwardly and then downwardly 29, thus forming a space between the members 13 and 29 for the insertion and retention of the bag 25. p

The operation of these devices is as follows A liquid, such as liquid soap is placed in the reservoir which flows through the flap valve into the bag reservoir, filling the latter. The slit valve formed by the bottom 26 of the bag reservoir will not allow the escape of liquid therethrough.

lVhen the delivery of a portion of the liquid is desired, pressure is exerted upon the plunger 28 forcing it inwardly, creating a pressure within the bag reservoir and as the flap valve will not allow the return of the liquid to the reservoir 17, it is forced outwardly through the slit 27. lVhen the inward movement of the plunger 28 is interrupted, the slit valve 27 closes, thus preventing the exit of further liquid through the slit valve. lVhen the source of inward pressure upon the plunger 28 is removed, the bag reassumes its original position, the slit valve 27 remaining closed and the flap valve 23 opening to allow of the inflow of liquid from the reservoir to the bag.

The modified form of my devices shown in Figure 5 is adapted for use with a common supply reservoir which may be feeding a number of such devices. In this device, the general supply pipe 30 is threaded to the casing 31 having the openings and 33. The casing has an annular shoulder 34 upon which the flange 35 of the flap valve is supported and held in place by the abutment of the supply pipe 30. The rubber bag reservoir has its plunger 28 extending through tlieopening 32 and the slit 2? is positioned in alignment with the opening 33.

The general operation of this modification is similar to that described before.

In the event of a wearing out, or disarrangement, of the flap valve, necessitating its, displacement, the flange 28 is forced inwardly until it is completely within the casing 13 and any suitable means can then be employed for withdrawing the bag downwardly through the opening 15. The flap valve is thus exposed and can be easily removed by any suitable means. A new flap valve is then forced upwardly into place and a bag reservoir forced upwardly through the opening 15 and positioned as shown in Figure 4- of the drawings.

It will thus be seen that the several elements composing the operating means of my device may be easily removed and replaced without breaking the jointure between the receptacle 17 and the support element 12.

I do not limit myself to the particular size, shape, number, arrangement or material of parts as shown and described, as these are given simply as a means for clearly describing the device of my invention.

What I claim is 12 In a liquid dispensing device, in combination, a reservoir support having three open ings therein, means for frictionally holding a flap valve over one suppport opening, a flap valve, means for frictionally holdmg a removable bag reservoir within the support and exterior of the flap valve and a bag having a slit valve opposite one support opening and. an integral plunger extending through the remaining support opening.

2. In a liquid dispensing device, in combination, a reservoir support having three openings therein, a movable check valve over one support opening and a removable bag reservoir exterior of the check valve and within the support, the sides of the bag practically abutting upon the sides of the support and having a slitvalve opposite one support opening and having an integral plunger extending through the other support opening.

In a liquid dispensing device, in conibination, a reservoir support the sides of which extend downwardly, then inwardly and then downwardly and having an open-- ing therethrough, the downward portion of the support having an opening in the side thereof; means for frictionallysupporting a removable flap valve within the support; a flap valve; means for frictionally supporting a removable bag reservoir exterior of the flap valve and interior of the support; and a bag reservoir, said bag reservoir having a slit valve in alignment with one support opening and an integral plunger extending through the other support openmg.

4:. In a liquid dispensing device, in combination, a reservoir support the sides of which extend downwardly, then inwardly and then downwardly and having an opening therethrough, the downward portion of the support having an opening in the side thereof; a disc positioned upon the shoulder and having an opening therein; means for trictionally supporting a. removable flap valve withmthe disc opening; a flap valve: and abag reservoir frictionally held exterior of the flap valve and interior of the support, the bag having a slit valve in alignment with one support opening and an integral plunger extending through the other support opening.

5. In a liquid dlspensing device, in combination, a liquid reservoir having a downwardly extending neck, a support casing capable of receiving said neck, means for hermetically sealing the jointure of the neck and the 'suport, an inwardly extended shoulder to said support, a downwardly extended tubular member extending from said shoulder and having a side opening and a bottom opening therein, a disc positioned upon the upper face of the shoulder and having a centrally positioned downwardly extended tubular membeiga flap valve within the last mentioned tubular member, a bag reservoir within the support tubular memher and maintained in position by contact with the two tubular members, the bag reservoir having a slit valve in alignment with one of the tubular openings and a plunger integral with the bag and extending through the other tubular opening.

6. In a liquid dispensing device, in combination, a reservoir support having three openings therein, a removable check valve over one support opening and a removable bag reservoir exterior of the check valve and within the support, the sides of the bag practically abutting upon the sides of the support and having a slit valve in alignment with one support opening and having an integral plunger extending through the other support opening.

Signed at New York city, in the county of New York and State of New York, this 1st day of October, 1924, 4

WILLIAM H. ROSE.

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