US2434706A - Reciprocating closure for collapsible tubes with parallel guide flanges - Google Patents

Description

P. D. MALYSZKO Jan. 20, 194

RECIPROCATING CLOSURE FOR COLLAPSIBLE TUBES WITH PARALLEL GUIDE FLANGES Filed March 5, 1944 Inventor Patented Jan. 20, 1948 BECIPROCATING CIJGSURE FOR "COL- LAPSIBLE TUBES WIT-H 'PARALLEL GUIDE FLANGES Paul "Dl"Malys1k0," Portland, Oreg.

Application March 3, 1944;?SeriaPNO; 524 917 romm.

This invention relates to a an improved collapsible" tube of such type asis used for" marketing 'a'nd subsequently dispensing toothpaste, shaving cream, and paste-like cosmeticsand has reference in particular to the neck and closure'construction; the closure beingpermanently attached to the neck to facilitate operation and to obviate the likelihood of loss, thus accomplishing a result now generally sanctioned by manufacturers, retailers and users.

In carrying out the principles of the invention I have provided a simple, expedient and otherwise useful closure, the latter being of a slide type and so designed and mounted as to expedite handling and manipulation thereof by a single hand of the user.

More specifically, I provide a collapsible tube having a discharge neck with a dispensing port and a slidable closure, there being a, so-called tongue and groove connection between the neck and the closure.

Other features and advantages of the invention will become more readily apparent from the following description and the accompanying illustrative drawings.

In the drawings, wherein like numerals are employed to designate like parts throughout the views:

Figure 1 is a fragmentary sectional view showing a collapsible tube and an especially constructed discharge neck embodying the closure means constructed in accordance with the specific prin ciples of the instant invention.

Figure 2 is a vertical section at right angles to Figure 1, this being on the plane of the line 22 of Figure 1 looking in the direction of the arrows.

Figure 3 is a view like Figure 1 showing the slidable closure shoved from right to left to socalled open position,

Figure 4 is a top plan view of Figure 3.

Figure 5 is a section similar to Figure 2 but taken on the plane of the line 55 of Figure 1.

Referring now to the drawings by distinguishing reference numerals it will be observed that the collapsible body is denoted by the numeral 6 and this is provided with an integral discharge neck 1 closed for the main part by a partition or diaphragm 8, the latter being provided at a predetermined point with a relatively small ejection and clean discharge slot 9. At one end of the partition is a projection l0 constituting a detent or keeper for releasable snap engagement in a. keeper seat ll formed in the adjacent end portion of the slide closure l2. The closure is of gen- .2 eral "rectangular \block-like-for-mand provided; on opposite longitudinal "edges with .outstanding flanges l3 which constitute -keyingl ribs. =The neck is providedwith-apair:ofparallel flanges. I4

spaced. above thesweb or partition..;8: and defining therebetween channels --I 5- whichwconstitute ,key-

ways for slidable reception of the keys or ribs l3. The central portion of the slide is thickened and rounded off into convex form to provide a riser it which also functions as a finger-piece. It will be noted that the riser has its opposite ends somewhat indented as at I! to facilitate the production of shoulders, that is, push shoulders for reception of the finger to be used in opening and closing the closure. The width of the closure is such that the lonigtudinal marginal edge portions thereof overlie the top surfaces, that is, the exterior surfaces of the flange Hi. There is a formation as at I8 at one end of the slideway which constitutes a stop shoulder. It will be noticed too, that the right-hand half portion of the closure is thickened to define a shoulder [9 to coact with the top shoulder [8. This thickened part 25! rides in slidable contact with the diaphragm B. Incidentally the part 20 is the essential closure element in that it feeds across the slot 9 to close the same as indicated in Figure 1. At this time the projection or detent l0 snaps into the keeper seat ll, Thus, the coacting elements It] and I I serve to limit the sliding movement of the closure l2 in a direction from left to right (see Figure 1) Whereas the coacting shoulders l8 and I9 limit the sliding movement in the opposite direction as brought out in Figure 3. Hence, the closure is not only keyed to the neck but its sliding motion in opposite direction is properly checked. Consequently, it is slidably mounted in place against displacement. I P

It is thought that persons skilled in the art to which the invention relates will be able to obtain a clear understanding of the invention after considering the description in connection with thedrawings. Therefore, a more lengthy descrip-- port adjacent one end portion and being pro vided outwardly of said discharge port with an upstanding projection constituting a detent, said diaphragm being provided at an opposite end with a riser constituting an abutment and stop shoulder, the neck outwardly of said diaphragm being provided with parallel outstanding portions formed with inwardly projecting opposed parallel flanges, said flanges occupying a plane overlying the diaphragm, riser, and detent in outwardly spaced relation and defining an open-ended channel-like closure assembling mount and guide tracks for said closure, a closure comprising an elongated block-like body disposed in the channel between the guide tracks and having its inner surface in slidable contact with said diaphragm, said block being of a length corresponding to the length of the channel, the underneath surface of said block being fiat and in intimate movable contact with the diaphragm, and one-half portion of said underneath surface being fashioned into a depending lug-like port-closing element,

said element also constituting a stop shoulder vided, intermediate its outer top surface with a raised part having transversely curved ends forming finger recesses to facilitate grasping and slid ing the body from closed to open position, the opposite longitudinal perimeter portions of said body being provided with channels, the aforementioned flanges snugly fitting into said channels, and said channels defining inner and outer pairs of flanges, the latter having slidable contact with said firstnamed flanges.

PAUL D. MALYSZKO.

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

UNITED STATES PATENTS Number Name Date 1,524,662 Layman Feb. 3, 1925 1,578,077 Courney Mar. 23, 1926 1,770,464 Donnelly et a1. July 15, 1930 1,975,967 Morrow Oct. 9, 193 2,008,001 Burnham July 16, 1935 2,099,289 Anderson Nov. 16, 1937 2,141,572 Tucker Dec. 27, 1938 2,273,999 Rueger Feb. 24, 1942

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