US1947310A - Liquid dispenser - Google Patents

Description

Feb- 13, 1934 w. M. SAMPLE nerr AL LIQUID DISPENSER Filed April 7. 1933 2 Sheets-Sheet l Feb. 13, w. M SAMPLE ET AL LIQUID DISPENSER Filed April 7, 1933 2 Sheecs-Sheeil 2 Patented Feb. 13, 1934 UNITED STATES PATENT OFFICE LIQUID DISPENSER Application April 7, 1933. Serial No. 664,978

7 Claims.

This invention relates to certain new and useful improvements in liquid dispensers.

The primary object of the invention is to provide a dispenser for liquids such as hand f: lotions, soaps, hair tonics or any form of liquid desired and is of the general type comprising an inverted receptacle or bottle that may comprise the original container of the liquid to be associated with the manually operable dispensing 'i mechanism.

A further object of the invention is to provide a liquid dispenser wherein the dispensing mechanism is regulable for controlling the quantity of liquid to be dispensed at each operation of 'i the device.

A still further object of the invention is to provide a liquid dispenser of the foregoing character wherein the liquid is dispensed through a tubular plunger rod and with all of the dispensing mechanism carried by the bottle or jar closure cap and further embodying means to prevent a continuous flow or discharge of the liquid when the dispensing apparatus is being operated for the discharge of a predetermined quantity of the With the above and other objects in View that will become apparent as the nature of the invention is better understood, the same consists in the novel form, combination and arrangement j of parts hereinafter more fully described, shown in the accompanying drawings and claimed.

In the drawingszy Figure 1 is a vertical sectional view of the inverted dispensing container or bottle and closure i; cap with the dispensing mechanism illustrated in elevation, carried by the closure cap and extending into the bottle;

Figure 2 is a bottom plan view of the assembled bottle and dispensing mechanism;

Figure 3 is a vertical cross-sectional view taken on line 3-3 of Figure 1 showing the dispensing mechanism in its shut off or closed position under iniiuence of a spring device;

Figure 4 is a cross sectional view similar to jFigure 3 showing the dispensing mechanism in its open position to receive a charge of the liquid to be dispensed;

Figure 5 is a horizontal sectional view taken on line 5-5 of Figure 4;

Figure 6 is a side elevational view of the piston'or plunger device of the dispensing mechamsm;

4Figure 7 is a fragmentary sectional view of another form of dispensing apparatus conistructed to prevent afcontnuous discharge of liquid from a bottle when the dispensing apparatus is being operated for the discharge of a predetermined quantity, the dispensing apparatusl being illustrated as in its extended liquid discharged position;

Figure 8 is a sectional View similar to Figure 7 with the dispensing apparatus operated to per-- mit the ow of liquid from the bottle into a restricted area for discharge;

Figure 9 is a detail sectional view, similar to 65 Figure 8 showing the tensioned dispensing device partially released from its retracted position to provide a closure for the restricted discharge area;

Figure 10 is a detail sectional view taken on 70@ line 10-10 of Figure 7; and

Figure 11 is an upper end elevational view of the dispensing device.

Referring more in detail to the accompanying drawings, there is illustrated a liquid dispenser in the form of a liquid container or bottle l0 provided With a threaded neck to receive the closure cap 11 that carries the dispensingmechanism illustrated as extending upwardly into the bottle 10 with the part of the dispensing operating 80.. mechanism to be manually operated extending below the closure cap 11. The bottle 10 is to be supported in an inverted position in any preferred manner such as by means of a bracket strap 12 illustrated in Figure 3 or if desired, the dispens- 85 ing bottle 10 may normally assume an upright position, resting upon its bottom 10a and be inverted for use.

The dispensing mechanism comprises an elonf' gated tube or cylinder 13 having one end thereof 90.., seated axially as at 14 in the closure cap 11, the latter being provided with a ring gasket 15 surrounding the cylinder 13 for engagement with the edge of the bottle neck to form a sealed connection between the bottle and closure cap. A piston 16 is slidably mounted in the cylinder 13 and is y.adapted to be operated by a tubular plunger rod 17, one end of which is anchored as at 18 in the DStOn 16 while the other open end ofthe tubular 'plunger rod 17 extends axially ,00 through the closure cap 11 and carries upon its outer end a pressure button 19. The tubular plunger rod -1'7 is of less diameter than the cyl inder 13 and the space therebetween within the area oi the closure cap 11 is filled with packing 105 material 20. A coil spring 21 is confined within the cylinder 13 with one end engaged withfthe, inner end of the piston 16 while its other eng, abuts the cross-pin 22 carried by the cylinder;

13 adjacent its outer er1d- Y; H6

To limit downward movement of the piston 16 under iniiuence oi the spring 21 and to regulate the quantity of liquid to be dispensed from the bottle 10 during each reciprocatory movement of the piston 16 by means of the tubular plunger rod 17 there is provided an apertured plug 23 anchored within the cylinder 13 at the desired point between the piston 16 and the packing 20, it being understood that the packing occupies the entire area between the cylinder and plunger rod and the plug 23. The piston 16 is illustrated in Figure 3 as being at its limit of downward movement and the cylinder 13 is provided with diametrically opposite openings 24 above the piston 16 and in proximity of its-fully lowered position to permit the liquid contents of the bottle 10 to flow through the openings 24 into the cylinder 13 to be discharged through the tubular plunger rod 17 when the piston 16 has been raised against the tension of the spring 21 as shown in Figure 4. For communication between the area 13a within the cylinder 13 when the piston 16 is raised and the tubular plunger rod 17, there is provided openings 17a in the tubular plunger rod adjacent the base of the plunger 16.

The dispensing mechanism is illustrated in Figure 3 in its closed position, the piston 16 constituting a valve closure for the cylinder openings 24. The relative sizes of the openings 24 in the cylinder 13 and the openings 17a in the tubular plunger rod 17 may be varied for use with different characters of liquids, either heavy or light, so that the same may readily low into the tubular plunger rod 17. To operate the device, as-

suming the bottle 16 to be supported in an inverted condition upon the bracket strap 12 as shown in Figure 3, the tubular plunger rod 17 is moved upwardly to position the piston 16 above the cylinder openings 24 against the tension of the spring 2l as shown in Figure 4 and at which time the liquid contents of the bottle 10 flow through the openings 24 in the cylinder 13 to enter the compartment 13a in the cylinder and to iiow therefrom through the openings 17a into the tubular plunger rod 17 for discharge through l the lower open end of the plunger rod. When pressure upon the plunger rod 17 is relieved, the spring 21 exerts pressure upon the-piston 16 to move the same downwardly in the cylinder 13 for closing the openings 24 and to force the contents in the chamber 13a into and through the tubular plunger rod. The quantity oi liquid to be dispensed at each operation of the device is regulable by the varied mounting of the plug 23 in the cylinder 13 which varies the area of the chamber 13a.

In the form of invention illustrated in Figures 7 to 11, the liquid dispenser comprises the bottle or jar 30 provided with a threaded neck to receive the screw cap 31. The dispensing apparatus is carried by the bottle cap 31 and includes the cylinder 32 having a packed connection at one end with the cap 31, with the other end thereof that extends into the bottle 30 closed by a disk 33 provided with a circular series of openings 34, the disk 33 carrying an inwardly directed axial pin 35, terminating at a point intermediate the ends of the cylinder 32. A plunger 36 is reciprocably mounted within the cylinder 32 and is provided with an axial bore that is surrounded on tHe side facing the cylinder disk 33 by the tubular guide`37 that receives the pin 35 carried by the end disk 33. The pin 35 and tubular guide 37 are surrounded by a coil spring 38 having abut- 'L ting engagement with the plunger or piston 36 the inner end of the cap 31 with the tubular plunger rod 39 slidably projecting therethrough and said plug 42 has a cavity 43 provided in its upper face for purposes presently to appear. The cylinder 32 is circumferentially slotted as at 44 upon diametrically opposite sides thereof and the tubular plunger rod 39 is provided with diametrically opposite openings 45 therein adjacent the lower face of the plunger or piston 36.

When the piston 36 is in its lowered position as illustrated in Figure 7, the same is disposed below the openings 44 in the cylinder 32, while the pin 35 depending `from the upper end disk 33 forms a closure for the upper end of the tubular guide 37 100 carried by the piston 36 with the result that the liquid contents within the bottle 30 are confined against discharge. The liquid contents in the bottle 30 are discharged in predetermined quantities and to effect such discharge, pressure is exerted upwardly upon the button 41 at the lower end of the tubular plunger rod 39 for moving the piston 36 upwardly in the cylinder 32 into the positionshown in Figure 8 and at which time the liquid contents of the bottle 30 iiow into the restricted 110 area 32a of the cylinder 32 by way of the side opening 44, entry of the liquid into the tubular plunger rod 39 by way of the openings 45 being prevented by the presence of the pin 35 extending across said openings. When pressure is relieved on the plunger rod 39, the spring 38 effects lowering movement of the piston 36 for closing the openings 44 in the cylinder 32 substantially at the moment that the lower edges of the openings 45 in the tubular plunger rod 39 pass below the lower end of the pin 35 so that the liquid conned within the restricted area 32a is forced by the piston 36 as shown in Figure 9 from the restricted area or compartment 32a through the openings 45 into the tubular plunger rod 39, the entire liquid contents in the restricted area 32 being ultimately discharged through the tubular plunger rod while the inclined upper face 43 of the plug 42 permits drainage of the liquid remaining in the area 32a after the piston has reached its limit of 130 lower movement through the openings 45 in the tubular plunger rod. The openings 34 in the disk 33 permit the discharge of liquid contents conned within the upper end of the cylinder 32 during upward movement of the piston 36. 135 It will be noted that when the piston 36 is at its limit of upward movement, 'the escape of liquid' from the bottle 10 is prevented, so that it is impossible to have the liquid contents of the bottle continuously flow therefrom during operation of 146 the dispensing mechanism.

While there are herein shown and described the preferred embodiment of the invention, it is nevertheless to be understood that minor changes may be made therein without departing from `the 145 spirit and'scope of the invention as claimed.

1. In a liquid dispenser, a liquid container, a closure cap therefor, and dispensing mechanism carried by the cap and including a cylinder, hav- 15C,

ing side openings therein, a regulable piston abutment in the cylinder inwardly of the openings, a tensioned piston in the cylinder constituting a valve closure for the openings when en-4 gaged with the abutment and a tubular plunger rod carried by the piston, extending through the closure cap and having openings therein forming communication between the cylinder inwardly of the piston and the interior of the plunger rod.

2. In a liquid dispenser, a liquid container, a closure cap therefor, and dispensing mechanism carried by the cap and including a cylinder, having side openings therein, a regulable piston abutment in the cylinder inwardly of the openings, a tensioned piston in the cylinder constituting a valve closure for the openings when engaged with the abutment and a tubular plunger rod carried by the piston, extending through the closure cap and having openings therein forming communication between the cylinder inwardly of the piston and the interior of the plunger rod, and the inner end of the cylinder being anchored in the closure cap.

3. In a liquid dispenser, a liquid container, a closure cap therefor, and dispensing mechanism carried by the cap and including a cylinder, having side openings therein, a regulable piston abutment in the cylinder inwardly of the openings, a tensioned piston in the cylinder constituting a valve closure for the openings when engaged with the abutment and a tubular plunger rod carried by the piston, extending through the closure cap and having openings therein forming communication between the cylinder inwardly of the piston and the interior of the plunger rod, the piston abutment being secured to the cylinder and the plunger rod passing through the abutment.

4. In a liquid dispenser, a liquid container, a closure cap therefor, and dispensing mechanism carried by the cap and including a cylinder, having side openings therein, a regulable piston abutment in the cylinder inwardly of the openings, a tensioned piston in the cylinder constituting a valve closure for the openings when engaged with the abutment and a tubular plunger rod carried by the piston, extending through the closure cap and having openings therein forming communication between the cylinder inwardly of the piston and the interior of the plunger rod, and the inner end of the cylinder being anchored in the closure cap, the piston abutment being secured to the cylinder and the plunger rod passing through the abutment.

5. In a liquid dispenser, a liquid container, a closure cap therefor, and dispensing mechanism carried by the cap and including a cylinder, a piston therein, a tubular plunger rod carried by the piston and slidable through the cap, said cylinder having openings therein for the passage of the liquid contents of the container and normally closed by the piston, and said plunger rod having openings for the passage of .liquid in the cylinder, and means for closing the openings in the plunger rod when the piston is moved to permit passage of liquid through the cylinder openings.

6. In a liquid dispenser, a liquid container, a closure cap therefor, and dispensing mechanism carried by the cap and including a cylinder, a piston therein, a tubular plunger rod carried by the piston and slidable through the cap, said cylinder having openings therein for the passage of the liquid contents of the container and normally closed by the piston, and said plunger rod having openings for the passage of liquid in the cylinder, and means carried by the cylinder to close the plunger rod openings when the piston is moved to permit passage of liquid through the cylinder openings.

7. In a liquid dispenser, a liquid container, a closure cap therefor, and dispensing mechanism carried by the cap and including a cylinder, a piston therein, a tubular plunger rod carried by the piston and slidable through the cap, said cylinder having openings therein for the passage of the liquid contents of the container and normally closed by the piston, and said plunger rod having openings for the passage of liquid in the cylinder, a tubular guide rising from the piston, a pin depending from the upper end of the cylinder and adapted to be received in the tubular plunger rod for closing the opening therein when ik,

the piston is moved to permit passage of liquid, through the cylinder openings.

WARREN M. SAMPLE. OTHO O. LANGDON.

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