US2827209A - Liquid dispensing apparatus - Google Patents

Description

March 18, 1958 up. SCHOELZEL ETAL ,3

LIQUID DISPENSING APPARATUS Filed Nov. 25, 1956 2 Sheets-Sheet l INVENTORS #525587 0- SCHUELZEL JUSEP/l D- f/EA/DEES'OA/ H. D. SCHOELZEL ETAL 2,827,209 LIQUID DISPENSING APPARATUS March 18, 1958 2 Sheets-Sheet 2 Filed Nov. 23, 1956 v INVENTORS #525587 0. 50/05125;

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mourn nisrnNsnto APPARATUS Elerhert D. Schoelzei and Joseph D. Henderson, San Antonio, Tex.

Application Novemher 23, 1956, fierial No. 623,893

2 (Iiaims. (Cl. 222-381) The present invention relates to apparatus for dispensing a liquid such as hairdressing liquid, perfume, or the An object of the present invention is to provide a liquid dispensing apparatus for dispensing a liquid such as hairdressing liquid, perfume, hand lotion, or other toilet liquid which lends itself to installation in public washrooms, trains, and other vehicles used by the traveling public, one which is sturdy in construction and simple in structure, one economical to manufacture and assemble, and one highly effective in operation.

These and other objects and advantages of the present invention will be fully apparent from the following description when taken in connection with the annexed drawings, in which:

Figure l is a sectional view of the apparatus of the present invention as seen from one side thereof;

Figure 2 is a sectional view taken on line 22 of Figure 1;

Figure 3 is a sectional view taken on line 33 of Figure 1;

Figure 4 is a sectional view taken on line 44 of Figure 1;

Figure 5 is a sectional view taken on line 55 of Figure 1; and

Figure 6 is a sectional view, on an enlarged scale, taken on line 6-6 of Figure 5.

Referring in greater detail to the drawings in which like numerals indicate like parts throughout the several views, the liquid dispensing apparatus of the present invention comprises an upright closed housing 16 having therein a receptacle 11 for holding a supply of the liquid to be dispensed.

A hollow piston rod 12 having a piston 13 on one end thereof is vertically positioned within the receptacle 11 with the piston 13 adjacent to and spaced from the bottom 14 of the receptacle 11. The piston rod 12 has a portion adjacent the upper end thereof exteriorly of and above the top of the receptacle 11.

A dispensing conduit 15 has one end connected in communication with the interior of the hollow piston rod 12 and has its other end remote from the receptacle 11 and projecting outwardly of the housing beneath a shield 16 formed integrally with the front wall of the housing 10.

An upstanding support member 16 is positioned within the receptacle 11 and has the upper end thereof exteriorly of and above the top of the receptacle 11. A vertically disposed pump cylinder 17 having its lower end open is carried by the lower end of the support member 16 for movement therewith and is positioned within the receptacle 11 so that the lower end of the pump cylinder 17 faces toward and is spaced above the bottom 14 of the receptacle 11. The pump cylinder 17 is mounted upon the piston 13 for up and down movement responsive to the upward and downward movement of the support member 16. i

ates Fatent ice A spring 18 is positioned between the upper face of the piston 13 and the upper end of the pump cylinder 17 for urging the pump cylinder 17 to its down position as shown in full lines in Figure 1.

Means is provided for effecting the upward and downward movement of the pump cylinder 17 and the support member 16 and comprises a horizontally disposed rocker arm 13 mounted upon the horizontally disposed long leg of a bracket 21 which is attached by its short leg to the rear wall of the housing 10. The mounting of the rocker arm 19 includes a shaft 22 fixedly secured thereto and having collars 23 and 24 on each side of the long leg of the bracket 21 for supporting the rocker arm 19 for rocking movement about the shaft 22 as a horizontal axis.

The wing nut 25 is threadedly engage-d upon the upper end portion of the support member 16 and connects the upper end of the support member 16 to the rocker arm 19 so as to efiect the upward movement of the support member 16 responsive to the tilting movement from the full line position to the dotted line position in Figure l.

The shaft 22 has a downwardly extending portion 26 from which projects an extension 27.

A coin slot mechanism of conventional construction is indicated by the reference numeral 28 and includes a plunger 29 disposed horizontally and having a finger hook 31 on the end of the plunger 29 which is exteriorly of the housing 10. The other end of the plunger 29 carries an L-shaped actuating element 32 having its long leg extending horizontally and longitudinally of the plunger 29 and having its short leg 33 projecting upwardly and engageable with the lower end of the extension 27 upon execution of forward movement of the plunger 29 within the coin slot mechanism 28.

Latch means is provided for holding the extension 27 in the position in which it is moved by engagement with the short leg 33 of the element 32 upon execution of movement of the plunger 29 forwardly. Specifically this latch means comprises an arm 34 having one end mounted upon a bracket 35 carried by the back wall of the housing 13 for movement from the full line position to the dotted line position shown in Figure 1. The free end of the arm 34 rests upon the upper end of the short leg 33 of the element 32 and is lowered to the dotted line position by the forward movement of the plunger 29 carrying the element 32 forwardly. The extension 27 has a portion underlying the arm 34 and receivable in any one of the notches 36 in the arm 34. At the limit of its forward movement, the plunger 29 will move the extension 27 to a rearwardly swung position with respect to the housing 10 and the extension 27 will be held in that position by the one notch 36 on the arm 34 into which the extension has been releasably secured. Upon movement of the plunger 29 outwardly of the housing 10, or rearwardly, the short leg 33 of the element 32 will serve to raise the arm 34, releasing the extension 27 from the one notch 36 and permitting the extension 27 to return to its original position and permitting the support member 16 to be lowered under the urging of the spring 18.

The coin slot mechanism 28 contains within a box 37 a conventional coin-rejecting and passing mechanism which permits the plunger 29 to be moved forwardly when the proper coin has been inserted within the plunger 29. This mechanism is not further described or illustrated as not being a part of the present invention.

Check valve means is provided in the lower open end of the cylinder 17 and includes a ball 38 positioned within the cylinder 17 and seatable in the open end which is positioned adjacent to and spaced above the bottom 14 of the receptacle 11. The ball38 is movable inwardly of the openend of thecylinder 17 in response to downward movement of the. cylinder 17 to fill the cylinder with a charge of the liquid contained in the receptacle 11 and will move to close the open end of the cylinder 17. responsive to. the. execution of the upward movement of the cylinder. 17 and the support member 16 to retain. the charge of liquid within the cylinder 17 and permit. the piston 13 to force the charge of liquid upwardly into the hollow piston. rod 12 Meansis provided on the end of the rocker arm 19. remote from its point of connection with the support. member 16. for limiting the downward movement of the support member 1 6. and the attached cylinder 17. Specifi:

cally this means comprises a bolt member 39 secured by'lock' nuts 41and 42 to. the rocker arm 19, the upper end of the bolt 39,-bearing against an abutment plate 43 provided on the underside of thetop of the housing 10, Byadjustment of the bolt- 39. relative to the rocker arm 19 the distance of travel of the support member 16 and; the. resultant movement'- Qfthe cylinder 17 permits the amount of liquid being. dispensed to be accurately and efliciently. controlled.

Means is provided stopping the mechanism of the dispensing apparatus from working upon exhaustion of the supply of liquid. within the. receptaclell and comprises a. float element 44. carried; on the lower end Of a, rod 45 which is jo-urnaled in brackets 46and 47 projecting from. one. si e, tthe piston. rod 12.. The pper en portion of; the rod 45: is bent downwardly S 413. nd: is. slidably supported in other brackets 49,; The lowe nd of the downwardly. bent portion 43 of the rod 45.; is receivable within a hole provided in the long leg of the lement 32- the e y ocki g th P ng .9. ns

, mov ment i o. e ho s ng .0 wh n the floate em nt 4.

is at t limit oii s downward. mo eme t position. n

adj st g crew 51 pe mi s. the j tm t o he. flo t e eme relat v to t esupp t ng rod Referring to Fig. 6, it will be seen that the receptacle 11 s prov ed th a pver o e w ich extend a pla e membe h vi a e i a l ex end n a e bo e j o he ear l -c he. ous J A n pp e 53 r ound t e ppe d o e, o l w pist r 12 and te s a m a s, o secu ment o t p s o to the p e .2 and to h. ..Q' l i 5-. he

n pp e 3 1 a ape ed nn ur ac n ch e t a b l 5 rm ng an ther 'q e sva e d p ra le, o pe mi liqui to flow upwardly to the nd i 5. to moved t owot' qu d dsw war v' n e. Pi QQ rod 12.

I use. the ecep cle; 1.1 s e si cemen e rom e. over t fi lin ith t e iq d. o e spen e nd.

ea l r r aqed- U o nse t s ir int the i s of th P u e 29 p un r- 2 may be pushed forwardly into the housing to to effect the tilting mo e t 't r c e arm 19 n he ub equ n r s n f e c l n h c um s a a e oi he liqilid to be d p n e n d nd 01111. o th d p nsin o dui 5 n hehaad o he us h liquid. be n indicated by droplets 55 in Figure 1 The amount of the liquid being dispensed is easily con; trollable by the adjustment oi the bolt 32 which limits e t t n m ment of he o k a m 19'- a The. dispensing. apparatus according to the present invention will be found to be useful for installation in public places such as washrooms on passenger carrying vehicles and in hotels and the like where it is desirable to have a dispensing apparatus for the sale of and applicareceptacle and having a portion adjacent the upper end thereof exteriorly of and above the top of said receptacle, a dispensing conduit having one end thereof connected in communication with the interior of said piston rod and having the other end remote from said receptacle, an upstanding support member positioned within said receptacle and having the upper end thereof exteriorly of and above the top of said receptacle and having the lower end positioned abovev the bottom ofsaid receptacle and connected to said receptacle for up and down movement, a vertically disposed pump cylinder having the lower end open carried by the lower end of said support memberfor movement therewith. and positioned so that the lower end of said cylinder faces toward and is spaced above the bottom of the. receptacle and mounted on the piston for sliding up and down movement in response to movement of said support member, check valve means normally closing the open lower end of said cylinder and operable to move to the open position responsive to the execution of the down. movement of said support member. to fill the cylinder with a charge of said liquid and to. move to the closed position responsive to the execution of the up. movement of; said support member to retain the charge of liquid within said cylinder, said piston upon. execution of the up movement of the cylinder pumping said liquid charge into the lower end of said piston rod, a horizontally disposed, rocker arm mounted in said'recep:

tacle for rocking movement about a horizontal axis and 1 having one end connected to the upper end of saidsupport member for effecting the up movement of the latter, means on the. other end of said rocker armfor limiting he. own mo em t o aid supp r b a o on said receptacle for forward and backward movement, and an upright extension dependingly carried by said c e a m a d h v n its l e nd c an eab y s one end of said plunger and operable upon execution 0t forward movement of the latter to etfect the move ment of said rocker arm to the position in which said support member is in the up movement position.

2. A liquid dispensing apparatus comprising a receptacle adapted: to contain a body of liquid to be dispensed, a hollow piston rod having a piston on one end thereof vertically positioned within said receptacle with said piston adjacent to and spaced from the bottom of said receptacle nd havin a a ng. adja nt he nn e d e o e cr b and a o h ten o ai rec a le a, i raisins du t ha in 9 nd th re 'osas ed communication with the interior of said piston rod and having the. other end remote from said receptacle, an

upstanding support member positioned within said recep-z tacle and having the upperend thereof exteriorly of and above the top of said receptacle and having thelower end positioned above the bottom of said receptacle and connected to said receptacle for up and down movement, a vertically disposed pump. cylinder having the lower end open carried by the lower end of said support member for movement therewith'and positioned so that the lower end of said cylinder faces toward and is spaced above the bottom of said receptacle and mounted on said piston for sliding up and down movement in response to the move.- ment of saidsupport member, spring means operatively connected to said cylinder urging said cylinder .to the down movement position, check valve means normally closing the lower open end of said cylinder and operable.

to move to the open position responsive to the. execution of said down movement of said support member to fill theo he an niq t snt a d e n e a mr aidl qu charge into the lower end of the piston rod, a horiz ontally disposed rocker arm mounted in said receptacle for rocking movement upon a horizontal axis and having one end connected to the upper end of said support member for efiecting the up movement of the latter, means on the other end of said rocker arm for limiting the down movement of said support member, a horizontally disposed piun er having one end Within and adjacent the upper end of said receptacle and having the other end exten'oriy of said receptacle and connected to said receptacle for forward and backward movement, an upright extension dependingly carried by said rocker arm and having its lower end engageable by said one end of said plunger and operable upon execution of forward movement of the latter to effect the movement of said rocker arm to the position in which said support member is in the up movement position, and latch means engaging said extension for holding the latter in the position to which it is moved upon execution of forward movement of said plunger and operable to release said extension upon execution of backward movement of said plunger.

References Cited in the file of this patent UNITED STATES PATENTS France Dec. 12, 1951

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