US2748991A - Paste dispenser - Google Patents

Description

R. L. M CARTHY PASTE DISPENSER June 5, 1956 Filed June 3 1953 M 4 f mw 2 M 3 M 4 w 2 2 z J x Z Q. RRQKQQRQSO Q 6 I M a 1 I H h I w Z \(M\ I 8 z w INVENTOR.

Rose/e7- L. M: CART/l) United States Patent PASTE DISPENSER Robert "L. McCarthy, Worcester, Mass Aipplication June.3, 1953,-'SerialINo. 359,277

3'Claims. '(Cl; 222-387,)

This invention relates to a .new and improved paste dispenser which is'pa'rticula'rly ofthe' type for housing a quantity. of: pastetobe. used for any purpose such-ascl'eaning teeth, shaving, etc., and the device may be made portable for traveling or it may be mounted upon a wall for in-position dispensing.

The principal object of the invention resides in the provision of a device as described including a housing, in combination with extensible means which is manually manipulatable to extend a device exerting pressure upon the paste contained within a cylinder, compartment or housing, said means being extensible to a degree several times longer than its original extent within the first-named housing, so as to provide for a device which is very small but which is capable of dispensing a relatively large amount of paste material.

Another object of the invention resides in the provision of a paste dispenser provided with means therein including a set of multiple extensible telescoping screw devices including a pusher or piston for extruding paste-like material from the dispenser, the essential characteristics of the screw-operated device residing in a series of screws contained one within the other and decreasing in diameter from the largest to the smallest, the latter being furthest extended, for the purpose of providing an extremely long piston or pusher means for dispensing the paste within a cylinder or other container therefor.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings, in which Fig. l is a vertical sectional view through a device according to the present invention;

Fig. 2 is a view in elevation thereof, part being broken away and in section; and

Fig. 3 is a view in elevation, partly in section, of a pastecontaining enclosure for application to the dispenser of the present invention.

In carrying out the present invention, there is provided an elongated cylinder generally indicated by the numeral 10. This cylinder is provided with an open end screwthreaded exteriorly thereto at 12 which fits into the open end of a complementary threaded cap member 14. The cylinder is provided with a closed end 16 having a small central opening 18 normally closed by a springpressed detent or ball 20 located in a closure cap 22 swivelly mounted at 24 upon the wall of the cylinder. The ball or detent 20 normally closes the opening 18 but when the cap 22 is swung to one side as shown in dotted lines in Fig. 2, the paste may be extruded.

The cap 14 is provided with an interior member 26 which is provided with internal screw-threads 28. These threads accommodate the largest initial member 30 of multiple part telescoping screw which is clearly shown in Fig. 2 as completely extended. The member 30 is hollow, internally threaded, and accommodates the next member of the telescoping screw 32, which in turn is hollow and threaded internally to accommodate the member ,2 3.4. The .member. 3.4 terminates. in a discor plunger 36 wliich..actually, bears upon. and translates: downwardly a disc. 38. .normally .foundiin the .paste container to be described.

Tlimrneniber 26. is provided with a handle 40. which uponrb'eing, turned, .causes the :telescoping .screw to be ex? tendedfrom a condition wherein member-34 is completely housedwithin member 32 and 32 iscompletely housed withinymemberz 3.0, .the latter in. turn being completely housed. withinmember, 26. Each member30, 32 and .34 may. be provided withcooperating .stop, means .toprevent extensionvofany smaller. member completely outofits larger member.

The extensible screw comprisingthe members. 30, 32 and f34-.are.all'.made .hollow. accommodating a spring in-. dicated at 50. .Thi'sspringprovides pressure tending to withdraw telescopingscrew members ,to. original .pos'ition, so that upon reverse rotation o'f'the'handle 40, the screw members will be retracted and housed. This spring is shown for purposes of disclosure only and other means may be provided for accomplishing the same purpose and in fact the spring is not completely necessary inasmuch as manual pressure could be applied by one hand when the handle is turned by the other hand.

The cylinder 10 may be mounted upon a wall at any height by means of any kind of bracket desired as at 42 and when the paste is completely used up, the cap 14 may be turned off from the cylinder 10, the handle turned completely retracting the members 32, 34 as above described, and a new amount of paste may be then inserted in the cylinder 10 and the cap 14 re-applied thereto.

One convenient container for the paste may include a cardboard cylinder 44 having a tab 46 easily removed to provide an outlet for the paste coinciding with that at 18. A cap of any material 48 may be used to close the container 44 for retail sale and handling and it is preferred that a disc 38 be used for impingement thereon by the disc 36 as above described. This makes the dispensing and handling of the paste much easier because of the fact that the used container 44 is easily extracted and a new one then merely dropped into place in the device.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I claim is:

1. A paste dispenser comprising a cylinder having a closed and an open end and an outlet at the closed end thereof, a swinging closure for selectively covering or exposing said outlet, a removable cylindrical cap selectively closing or opening the open end of the cylinder, a hollow rotatable interiorly threaded member located and held in said cylindrical cap against axial motion, a handle for rotating said threaded member in the cap, a hollow internally and externally screw-threaded element threaded into said member by the exterior threads thereof, a second hollow screw-threaded telescoping element engaged in said first-named element, said handle being effective to extend the elements to their full extent from said firstnamed member, and said elements being substantially wholly received and housed in the cap in fully retracted condition, said cap being removable from the cylinder for filling the latter.

2. A paste dispenser comprising a cylinder having a closed and an open end and an outlet at the closed end thereof, a swinging closure for selectively covering or exposing said outlet, a removable cylindrical cap selectively closing or opening the open end of the cylinder, a

hollow rotatable interiorly threaded member in said cylindrical cap, a handle rigidly connected to said member for rotating said member therein, a hollow screwthreaded element threaded into said member, a second hollow screw-threaded telescoping element threaded into said firshnamed element, said handle, when turned, being effective to extend the elements to their full extent from said first'named member, a spring located within the hollow screw-threaded elements and connected to opposite ends of the hollow elements tending to telescope the same.

3. A paste dispenser comprising a cylinder having a closed and an open end and an outlet at the closed end thereof, a swinging closure for selectively covering or exposing said outlet, a cylindrical cap selectively closing or opening the open end of the cylinder, a hollow rotatable interiorly threaded member in said cylindrical cap, a handle rigidly connected to the member for rotating said member therein, a hollow screw-threaded element threaded into said member, a second hollow screwthreaded telescoping element threadedly engaged in said first-named element, and a third hollow element, telescopingly, threadedly engaged in the second element, said elements decreasing in diameter from the first-named to the last, said handle when turned being elfective to extend the elements to their full extent from said first-named 4 member, and said elements being substantially wholly received and housed in the cap in fully retracted condition, said cylinder being a separable tube connectible to the cap with all said elements received in the latter, and a fixture to support the cylinder in fixed relation to a wall or the like.

References Cited in the file of this patent UNITED STATES PATENTS 1,249,957 Hess Dec. 11, 1917 1,274,699 Estes Aug. 6, 1918 1,285,086 Falkinburg Nov. 19, 1918 1,299,235 Sanderson Apr. 1, 1919 1,906,837 Brochu May 2, 1933 2,029,055 Burke Jan. 28, 1936 2,557,374 Cripe June 19, 1951 2,582,156 Peterson Jan. 8, 1952 FOREIGN PATENTS 669,856 France Aug. 10, 1929

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