US2835416A - Juice pump - Google Patents

Description

May 20, 1958 v. P. STEELE JUICE PUMP 2 Sheets-Sheet 1 Filed Dec. 12} 1951 INVENTOR ATTORNEYS y 1958 .v. P. STEELE 2,835,416

JUICE PUMP Filed Dec. 12, 1951 2 Sheets-Sheet 2 96 INVENTOR llzmm Jicele lmm...

ATTORNEYS ited States Patent JUICE PUMP Vernon P. Steele, N oroton, Conn., assignor to Kenco Products Corporation, New York, N. Y., a corporation of New York Application December 12, 1951, Serial No. 261,280

2 Claims. ((1222-1541) a pump of the above character which will be neat and attractive in appearance. Still another object is to provide a pump of the above character which may be easily and quickly cleaned. A still further object is to provide a pump of the above character which dispenses a maximum of liquid during each pumping stroke. Still another object is to provide a pump of the above character in which the liquid is agitated during each pumping stroke. Other objects will be in part obvious and in part pointed out hereinafter.

The invention accordingly consists of the features of construction, combinations of elements, and arrangements of parts, all as will be illustratively described herein, and the scope of the application which will be indicated in the following claims.

In the accompanying drawings, in which is shown one of the various possible embodiments of this invention:

Figure 1 is a perspective view of the pump;

Fig. 2 is a side elevation of the pump, certain parts being broken away for purposes of illustration;

Fig. 3 is a side elevation of the pump taken at right angles to the view shown in Fig. 2;

Fig-4 is a transverse section taken on line 4-4 of Fig. 2;

Fig. 5 is a transverse section taken on line 55 of Fig. 2; and

Fig. 6 is a transverse section taken on line 6-6 of Fig. 2.

Similar reference characters refer to similar parts throughout the several views of the drawings.

Briefly, the pump includes a supporting plate, generally indicated at 10, which fits over an opening in the container from which liquid is to be dispensed. An inverted cup, generally indicated at 12, is positioned beneath plate 10 and is connected thereto by a rod 14 and a unitary dispensing tube 16. Tube 16 is connected to the top of cup 12 and extends upwardly through an opening in plate 10 to form a spout 16a. The side wall of cup 12 forms a piston wall and co-acts with a plunger 26 to force liquid up through tube 16' when plunger 20 is moved upwardly by a plunger rod 22. A valve disc 32 is loosely mounted on plunger rod 22 above plunger 20 and closes ports 34 in the'plung'er when plunger 20 moves upwardly, the disc moving vertically upward to permit liquid to flow into cup 12 when plunger 20 moves downwardly. Rod 22 is actuated by means of a handle, generally indicated at 24, which is con- 2' nected to rod 22 by a shaft 26, and arm 28 and link 30 (Fig. 2).

Referring now to the drawings in detail, the dotted line 36 (Fig. 2) diagrammatically outlines a container having an opening 38 in its top. Pump supporting plate 10 has a cylindrically-shaped flange 40 extending downwardly therefrom, the outer diameter of which is slightly less than the diameter of hole 38. Thus, when the pump is mounted on container 36, the outer portion 10a of plate Iii rests upon the top of the container and the lower portion of the pump is positioned in the liquid within the container 36.

Inverted cup 12 is fixedly connected to plate 10 by means of stay rod 14 and unitary dispensing tube 16. Rod 14 is secured to cup 12 and plate 10 in any suitable manner, such as by silver brazing. Dispensing tube 16 extends through holes in the top of cup 12 and in plate It and is brazed both to cup 12 and plate 10. The upper portion of tube 16 is bent to the right, as viewed in Fig. 2,

to form spout 16a.

The side wall 12a of inverted cup 12 is cylindrical and forms a variable displacement pump chamber with plunger 20 from which chamber liquid is discharged upwardly through tube 16. It will be noted that the rim of plunger 20 is slightly dished upwardly to form a flange 20a, the outer diameter of which is slightly smaller than the inner diameter of wall 12a of cup 12. A series of holes 34 are formed in plunger 20 to provide valve ports through which liquid enters cup 12 during downward movement of plunger 20. The rims of ports 34 are peened upwardly to form flanges, the upped edges of which all lie in the same plane.

A valve disc 32 is seated by gravity on and over ports 34 and serves to close them during upward movement of plunger 20. Valve disc 32 has a hole 32a in its center slightly greater than the diameter of plunger rod 22 to permit it to move upwardly and downwardly with respect to rod 22 as the pump piston-rod is reciprocated. Thus, on an upward stroke of plunger 20, the disc 32 is seated on ports 34 closing them, and on downward movement of plunger 20, disc 32 is forced upwardly on rod 22 by the liquid flowing into cup 12 through ports 34.

Piston rod 22 extends upwardly through the axial hole in the center of the top of cup 12, and through an aligned hole (Fig. 4) in supporting plate 10, and 46 in'the housing for the actuating mechanism. Housing 48 (Fig. 2) is secured to the top of plate 10 in any suitable manner, such as by brazing, and includes a cylindrically-shaped body portion 48:; within which the mechanism for actuating rod 22 is positioned.

Referring to Fig. 4, it will be noted that the sides of portion 48a of housing 48 are closed by detachable cover plates 50 and 52. These plates are circular in shape and fit annular seats 54 and 56 formed in opposite sides of housing 48. Cover plates 50 and 52 are detachably secured in assembled relationship with respect to housing 48 by a threaded stud 66 (Figs. 2 and 5) secured to plate 50. Stud 66 passes through an opening 67 in a radial support or lug 69 which is attached to the inner wall 48a (Fig. 4) of the cylindrically shaped portion 48a of housing 48. Stud 66 passes through a hole 68 (Fig. 5) in plate 50 and plates 59 and 52 are detachably held in assembled relationship by means of nut 70.

The actuating mechanism for the pump is mounted in the housing and incorporates a driving connection between handle 24 and piston rod 22 including a rocker shaft 26 (Fig. 5) which is rotatably mounted in aligned holes 74 and 76 in plates 50 and 52. The end portion 72a of shaft 72 is squared and adapted to fit into a square hole in the hub 24a (Figs. 3 and 5) of handle 24. The hub portion 24a of handle 24 is detachably held on shaft 26 by means of a nut 78. Rocker arm 28 (Figs. 2,

4 and 5) is fixedly secured to shaft 26 at an obtuse angle to handle 24 and is housed between plates 50 and 52. The lower end of arm 28 is transversely apertured at 80 and the upper end of rod 22 is similarly apertured at 82. A link 30 is provided with spaced lateral pins or legs 30a and 30b (Fig. 4) positioned in vertically aligned holes 80 and 82 and is detachably held in assembled relationship with respect to arm 28 and rod 22 by bearing engagement of cover plate 52 thereagainst. In operation, when handle 24 is moved in a clockwise direction, as viewed in Fig. 2, arm 28 is fulcrumed on shaft 26 and moves upwardly carrying carrying link 30 with it and plunger rod 22 is reciprocated upwardly. It will be noted that as arm 28 moves upwardly the axis of leg 30b of link 39 follows a path which deviates but slightly from a vertical extension of the longitudinal axis of plunger rod 22. This makes the pumping action smooth as friction is reduced to a minimum.

During the pumping stroke, the upward movement of plunger 20 compresses a coil spring 77 positioned within cup 12 and having spring-biasing bearing engagement with both between the top of cup 12 and plunger 20. Thus, when the pump handle 24 is released, spring 77 biases plunger 20 downwardly into its fully extended stroke position, and the piston chamber is filled with fluid. Downward movement of plunger rod 22, and thus plunger 20, is limited by the engagement of the bottom of link 33 (Fig. 2) with the inner wall of the cylindrically shaped housing 48. When plunger 20 is reciprocated upwardly, ports 34 are closed by disc 32 and the liquid within cup 12 is forced upwardly through dispensing tube 16. When handle 24 is released, plunger 20 is reciprocated downwardly by spring 96, disc 32 is unseated and, as noted, liquid flows into cup 12 through ports 34. Each time handle 24 is actuated the liquid within container 36 is agitated by an agitator 71 (Pig. 2) detachably mounted on plunger rod 22 by a U-shaped spring 73. The legs of spring 73 are positioned in slots in the hub 73a of agitator 71 and engage notches (not shown) in rod 22.

To aid in reassembling the pump and to limit upward movement of disc 32, a U-shaped member 31 is mounted on rod 22 within cup 12. Member 31 has a hole 83 (Fig. 6) therein through which rod 22 passes. As hole 83 is of greater diameter than rod 22 member 81 may be removed from rod 22 when the pump is disassembled. The legs 81a and 81b of member 81 flange outwardly (Fig. 6) at their lower ends and the distance between their outer surfaces is such that the upper portion of the support fits up into the center of coil spring 77. The lower coil of spring 77 rests on the flange portions of he legs 81a and 81b and thus holds member 81 against plunger 29 when the pump is assembled. Thus, when the pump is in use, member 81 limits upward movement of disc 32, and when the pump is being assembled, member 81 positions spring 77 so that it may be easily assembled in cup 12.

To disassemble the pump, lock spring 73 (Fig. 2) and nut 70 (Fig. 4) are removed. This permits plate 50 and link 30 to be removed, at which time the plunger 20 is spring-biased downwardly by spring 77. Once plunger rod 22 is withdrawn from cup 12 the spring 77 and valve disc 32 may be removed from the plunger rod. The actuating mechanism within housing 48 can be exposed by removing plate 52 and the mechanism can then be disassembled by hand.

It will thus be seen that a thoroughly practical and durable pump has been disclosed which has a minimum of parts and which operates in an efficient and practical manner. It will be noted that the pump may be readily disassembled for purposes of cleaning and that when disassembled all parts of the pump are so constructed that 4 they may be easily and quickly cleaned. Because of its simple construction the pump may be reassembled in a minimum of time. It will thus be seen that the several objects hereinabove mentioned, as well as many others, have been successfully accomplished.

I claim:

1. In a pump, in combination, pumping mechanism including a cup and a plunger, a plunger rod connected to said plunger, a support member, a delivery tube having one end opening into the interior of the cup, said tube being secured to said support member and to the cup, a generally cylindrical shaped housing fixedly secured to the support member, a pair of circular cover plates enclosing the sides of said housing, a radial lug attached to the housing and extending inwardly between said plates, means attached to one of the cover plates adapted to extend through said lug and through the other cover plate to secure the plates to said housing, a rocker shaft mounted for rotation in and between said plates, the axis of said shaft being parallel to the axis of said housing, a handle connected to said shaft, an arm connected to said shaft having an opening in the vicinity of its free end, the plunger rod having an opening in the upper end there f, said rod passing through the support member and havi g its upper end enclosed by said plates, a removable U- shaped link unilaterally connecting said arm to the plunger rod, said link including a pair of cylindrical shaped legs positioned in said openings in the plunger rod and arm, the body portion of said U-shaped link being adjacent and parallel to one of said covers, the link being held in operative position with respect to said rod and said arm by bearing engagement of said cover thereagainst, whereby upon removal of said last mentioned cover, said arm and pump rod may be disconnected by removing said link.

2. In a pump, in combination, a support member, an inverted cup, at plunger rod having a plunger connected thereto, said plunger being vertically movable with respect to said cup and passing upwardly through an opening in said support member, valve means associated with said plunger adapted to open when said plunger moves downwardly and to close when said plunger moves upwardly, a delivery tube having its lower end opening into the top of the cup, said tube being secured to said support memher and to said cup, a stay rod connected between the support member and the cup, spring means positioned between said plunger and the interior top portion of the cup, whereby said plunger is urged downwardly, a generally cylindrical shaped housing fixedly secured to the support member, the longitudinal axis of said housing being at right angles to the axis of said plunger rod, said housing having an annular recess in each of its sides, each of said recesses having a cover member detachably seated therein, an actuating mechanism in said housing including a rocker shaft mounted in and between the cover members, a handle for actuating said shaft, a rocker arm connected 0 said shaft, aligned transverse openings in the rocker a and in the upper end of the plunger rod, and a unilaterally disposed U-shaped link having its leg portions positioned in said openings, whereby to connect said rod and the actuating shaft, one of said cover members having bearing engagement with and biasing said U-shaped link in assembled relationship with respect to said rocker arm and said plunger rod, the U-shaped link being removable when said last mentioned cover is removed, said plunger rod, spring and plunger being removable from said pump only when said link is disconnected from the upper end of said rod. v

Thompson Dec. 27, 1932 Kestenbaum Feb. 6, 1951

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