US1720096A - Dispensing device - Google Patents

Description

y 9, 1929- J. G. SCHOFIELD 1.720.096

DISPENSING DEVI GE Filed Jan. 10, 1928 Patented July 9, 1929.

UNITED STATES JOHN G. SCHOI'IELD, OF WASHINGTON, DISTRICT 0] COLUMBIA.

DISPENSING DEVICE.

Application filed January 10, 1928. Serial 110,245,692.

This invention relates to a dispensing device, and more particularly one adapted for attachment to a tube from which the content is extruded by manually collapsing the tube, such as the tubes commonly employed for vending tooth paste, shaving creams, etc., or other plastic or semi-liquid material? One of the chief objections to such tubes in common use, closed by a screw cap, is that the users frequently fail to replace the cap after using a portion of the contents, thereby permitting the tooth paste, for instance, to become hardened at the end of the tube nipple, with the undesirable result that when the tube is next used, pressure upon it ex pels too much of the material, and too suddenly, resulting in waste and other inconveniences. a

Furthermore, the usual way of extruding the contents of these tubes is wasteful, as there is no fixed way of regulating the amount of content expelled at any one time. I aim to entirely obviate the foregoing objections, which I believeI do by providing a device readily adjustable to and removable from the nipple of an ordinary tube, or those in universal use, that will, in effect, keep the nipple always closed, so far as the main bulk of the contents is concerned, but at the same time, through a very simple manipulation of the device, deliver just the required amount of material and present it at a point, and in a manner to be conveniently removed with a tooth brush, shaving brush, or the like, leaving as intimated, the nipple closed so as not to waste or harden the remaining material.

\Vith slight modifications as to fit of the moving part of the dispenser, a more liquid content may be dispensed, as for instance in cases-where just a certain amount of the contents is prescribed.

In the drawings illustrating the invention Figure 1 is a penser closed;

Figure 2 is a similar view, in delivery position;-

Figure 3 is a transverse central section, the pocket or trough of the core bein position to receive a charge of material rom the nipple of the tube;

Figure 4 is a top plan view.

Referring to the drawings, the numeral 1 perspective view of the diswith the parts designates a collapsible tube, such as is commonly used for vending tooth paste, shavvmaterial holder or tube,

ing cream, etc., and 2, the usual externally threaded nipple thereof, The numeral 3 designates the dispenser as a whole. It comprises an internally threaded short sleeve 4 which mergesinto a slightly elongated cylindrical casing 5 closed at its ends with the exception of oppositely positioned V-shaped recesses 6, which form the open ends of delivery openin 6. Within the casing and fitting snug y, is a rockable core 7 in which there is a trough-like pocket 8 extending for the entire length of the core, the pocket bein adapted to be brought into registry with t opening 6' in the casin for the purpose of delivering a portion 0 the contents of the and opposite the opening in the nipple of the holder to receive a charge of the material. The casin is recessed circumferentially at one side, and in the middle thereof, as indicated at 9, the circular recess being adapted to receive the shank of a headed pin 10 secured in the core and by which the core is manuall manipulated in its rocking movement. 'lhe-depth of the recess 9 is such that the pocket may be alternately moved from one extreme position to the other, which final positions are those in which the core receives a charge of material in one instance and delivers 1t in another.

The edges of the recesses 6 register accuratelywith the o n ends of the trough-like pocket, so that w on the core is in position to deliver the material, there is in effect, a

continuous trough or groove extending throughout the length of the casing and core, so that a tooth passed through the trough to conveniently remove the contents thereof. As soon as the material is removed, the core is rocked to the position shown in Figure 3 when it is' opposite the opening in the nipple and in postion to receive another charge, when the tube ispressed.

From the foregoing, it will be seen that at i no time is the main body of the contents exposed to the air. In other words, the core forms a complete closure for the tube or holder in all positions.

In dispensing the contents of a collapsible e recesses 6 in the delivery brush for instance, can be.

tube the tube will be pressed slightly, forcing a part of the contents into a ocket 8, the core is then rocked, delivering t is much to the delivery opening and after it has been removed by a tooth brush or otherwise, the

core is rocked back to position to bring the pocket opposite the opening in the nipple, when the tube will be again slightly pressed, filling the pocket for future delivery. However, it has been found in practice that this is virtually automatically and unconsciously done by a user.

I claim:

1. A dispensing device comprising means for attachment to the open end of the nipple of a collapsible tube, a casing havingoppositely disposed recesses in its ends, and an opening above the means for attachment to the tube, a core rockably held in the casin and having a trough-hke pocket 0 en at bot ends, the ends being adapted to brought into registry with the recesses in the ends of the casing, ther'ethrough, for the purpose described, the core being adapted to be rocked to position to receive a charge of the materialfrom the tube when in one position, and deliver the same through the casing when rocked in the opposite direction, and means for limiting the movement of the core in both directions.

2. In a dispensing device, in combination,

a casing having oppositely disposed recesses in its ends, and an outlet opening, a core rockably held in the casing. and having a troughlike pocket open at bothends, the ends beinghadapted to be brought into registry with t e recesses in the face of the cas so as to form a continuous trough ing, so as to form through, the core being adapted to be rocked to osition to receive a charge of the materia to be delivered when in one position, and to deliver the same throu h the casing when rocked in the opposite 'rection, and means for limiting the movement of the core in both directions.

3. A dispensing device including a depending internally threaded sleeve adapted for attachment to the nipple of a holder, and a casing having oppositely disposed recesses in its ends, and secured to the sleeve, said casing being provided with a delivery opening and also having a circumferential recess at one side of said delivery opening, a rockable core held in the casing, and having a troughlike pocket open at both ends, the open brought into registry with the recesses in the ends of he casing, so as to form a continuous trough therethrough, a pin carried by the core and serving both as means for facilitat ing the movement of the core in the casing and also as a stop for limiting the movement of the core in either direction, said pin being adapted to engage the upper edge of the easing when rocked in one direction, and to enends of said core being adapted to be a continuous trough theregage the bottom of said circumferential slot

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