US2570755A - Tooth paste dispenser - Google Patents

Description

Oct. 9, 1951' J. L, BOOTH 2,570,755

I TOOTH PASTE DISPENSER Filed March 23, 1949 2 Sheets-Sheet 1 ll|l llllllllIIlllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllliiiiill INVENTOR.

John L. Bootb BY NEW Oct. 9, 1951 J. L. BOOTH 2,570,755

TOOTH PASTE DISPENSER Filed March 23, 1949 2 Sheets-Sheet 2 I INVENTOR. John L. booth BY 6. M

a pair of rearwardly extending bottom runners Ilia (Fig. 9), whereby the snubber is mounted for reciprocal movement relative to the nozzle 4. the seat block member being suitably recessed to accommodate the snubber structure; as will be understood. At its upper end, the snubber is sealing relation with the snubber I6 and the follower 23 into engageable alinement with the trigger l4, as illustrated in Fig. 1.

The tooth brush 3'! is impelled against the gate 22 which is plunged inwardly thereby, in turn impelling the follower 23 into engagement with the trigger which is thus pivoted to the position occupied thereby in Fig 2. The cam l5, engaging the claw member l2, depresses the rack to impart rotation to the roller in a'down- ,t ward direction, thereby extruding the contents -of the tube by virtue of the compression exerted detachably connected to the trigger by a rearward extension I! forming a spring pawl member terminating in a hook Ila. which normally engages a notch 18 formed in the trigger. Thus, the trigger is pivotably rearwardly to carry therewith the snubber l6 against the influence of a spring l9, secured at its front endto the snub her and at its rearmost end to a'pin 20 suitably anchored to the block member 5.

The cover portion 2 is apertured, as at 2|, to receive a gate 22'having a resilient connection inwardly thereof with a follower 23 from which it is normally spacedby a spring 24, the ends of which are secured to the adjacent faces of the gate and follower for a purpose to be presently explained. The gate and follower have reciprocal slideable movementin a bridge or trackway 25 extending rearwardly of the cover portion and carried- .thereby.

Meshing with the rack 8 is a gear ring 26 encircling a roller 21 about the mid-portion thereof (Figs. 1 and 6). The roller comprises a first cylinder 28 terminating at its outer end in a pin 29 and extended at its inner end in a cylindrical shaft 30, the outer end of which, in turn, terminates in a'square, tapered shaft 3! having a pin 32-formed thereon. A second cylinder 33, suitably recessed axially thereof to accommodate the shafts 3B and 3|, is alined with the first cylinder 28'to form the roller, the gear ring 26 being passed therearound'so as to rotate independently of the roller assembly. Coiled about the shaft is a helical spring 34 having one end secured to the gear ring and the opposite end fastened to the shaft 30. Thus, when thegear ringis turned in. one direction the spring 34 tightens about the shaft 30 to rotate the roller assembly therewith but when turned in the opposite direction the gear ring has'limited independent rotation relative to the roller assembly, for a purpose to be presently described.

The roller is adapted to'travel in downward movement relative to the tube 3, the pins .29 and 32 engaging a groove 35 formed in each side of the cover portion. These grooves terminate at their upper and lower ends in a rearwardly extending elbow portions v36 whereby to permit the removal'of the roller from the cover portion 2.

In practice, the dispenser is loaded by disas sembling the cover portion from; the back portion, the two portions of the case being normally fastened by any suitable latching device well known in the art, and arranging the paste tube against the innerface of the cover portion. The roller is adjustedagainst the upper flat portion of the tube, the neck of which is fitted into the nozzle 4 and the nozzle seated'in the socket 6.-

The cover portion is then reassembled with they back portion, bringing the nozzle 4 into thereon by the roller.

The pivotal movement of the trigger carries the snubber rearwardly to unseal'the nozzle 4,;and the claw member being depressed against the pawl member I! in the descent of the rack 8, the pawl member is rev, leased from its engagement with the trigger and the snubber returned under the influence of the spring associated therewith to sealing relation with the nozzle 4. It will .be observed that the release of the snubber to permit its return, to sealing position takes place at or near the extreme rearward position of the trigger, so that the gear ring 26 which, by reason of the roller.

construction above set forth; is free-to rotate with the upwardly moving rack without rotating the roller therewith.

To assist in braking the roller against reverse rotation upon the upward retractive travel of the rack 8, I may provide the roller with the mechanism shown in Fig. 5, wherein the pins are fitted with a shoe 38 at each end of the roller.

These shoes carry a downwardlyinclined blade 39 having a scallopededge adapted to: engage the peripheral-surface of the roller. to resist its rotation'thereagainst. The shoes may be slideablysupported in travel upon apair of comple-- mentary flanges 40 formed against the inner faces of thesides of the cover portion. The roller may be covered with a peripheral working surface 4|, of rubber'or like resilient material (Fig. 6); A pair of toothed guide racks 42 -may be formed against the. inner face .of the cover portion and spaced along the marginal edges thereof, for frictional engagement by the rubber periphery of the roller.

It is to be understood that while the foregoing exemplification of my invention has been directed to a dispensing device for tooth paste contained in a collapsible tube, the invention has application to the dispensin 'of the contents of any tube of the collapsible type where a brush is rimpellable against a gate as described herein.

Of course, the invention is susceptible of various modifications without departing from the scope thereof as hereinafter claimed.-

Having thus described the invention and the mode of its practice, what I claim as new and desire to secure by Letters Patent is:

1. In a paste dispenser, in combination with a case adapted to receive a collapsible, paste-containing tube having a bottom outlet, a roller journaled in said case and engageable with said tube for the extrusion of paste therefrom, a gear encircling said roller, a rack mounted for reciprocation in said case and engageable with said gear, a resilient nozzle communicating with said outlet and a snubber mounted for reciprocation in said case and normally engageable with said nozzle in sealing relation therewith, a trigger operatively connected with said rack and releasably engaged with said snubber and operable to simultaneously actuate said rack and withdraw said snubber out of nozzle sealing relation, means carried by said rack to disengage said trigger from said snubber to permit the retraction thereof into nozzle sealing relation upon the extrusion of a predetermined quantity of paste.

2. In a paste dispenser, in combination with a case adapted to receive a collapsible, paste-containing tube having a bottom outlet, a roller journaled in said case and engageable with said tube for the extrusion of paste therefrom, a gear encircling said roller, a rack mounted for reciprocation in said case and engageable with said gear, a resilient nozzle communicating with said outlet and a snubber mounted for reciprocation in said case and normally engageable with said nozzle to constrict the passage therethrough, a trigger operatively connected with said rack and releasably engageable with said snubber, a brush-impelled plunger gate arranged in said case and engageable with said trigger for the actuation thereof to simultaneously actuate said rack and withdraw said snubber out of nozzle sealing relation to effect the extrusion of a predetermined quantity of paste upon said brush, means carried by said rack to disengage said trigger from said snubber to permit the retraction thereof into nozzle sealing relation in advance of the withdrawal of said brush from said case.

3. In a paste dispenser, in combination with a case adapted to receive a collapsible, paste-containing tube having a bottom outlet, a valve communicating with said outlet, a trigger, means operable by said trigger to compress said tube for the extrusion of paste therefrom, means operatively connected with said valve normally effecting the sealing thereof and releasably engaged with said trigger and operable thereby to effect unsealing of said valve simultaneously with the operation of said extrusion means, said valve seal ing means being disengageable from said trigger to re-seal said valve by the operation of said extrusion means upon the extrusion of a predetermined quantity of paste from said tube.

4. In a paste dispenser, in. combination with a case having a brush passage and a plunger gate normally closing said passage, said case being adapted to receive a collapsible, paste-containing tube having a bottom outlet, a valve communieating with said outlet, a trigger engageable by said gate upon the inward thrust of a brush impelled thereagainst, means operable by said trigger to compress said tube for the extrusion of paste therefrom, means operatively connected with said valve to normally elfect the sealing thereof and having disengageable connection with said trigger and operable thereby in co-operation with said tube compression means, said valve sealing means being disengageable from said trigger by operation of said tube compression means to re-seal said valve in the course of said inward thrust and upon the extrusion of a predetermined quantity of paste from said tube.

JOHN L. BOOTH.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,156,106 Smart Oct. 12, 1915 1,920,867 Kirk Aug. 1, 1933 2,113,022 Hefti Apr. 5, 1938

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