Патент USA US2109397код для вставки
' Feb. 22, 1938. F. MCLAUGHUN 2,109,397 ‘ CLOSURE FOR COLLAPSIBLE TUBES AND CONTAINERS ‘Filed June 15, 1955 F95. .' rMcLailgkTih Patented Feb. 22, 1938 __ 2,1095% UNITED STATES’ PATENT OFFICE \ 2,109,397 , CLOSURE ‘FOR COLLAPSIBLE TUBES AND CONTAINERS Frank McLaughlin, Toronto, Ontario‘, Canada, assignor, by mesne assignments, to Douglas Henderson, Toronto,‘ ‘:Qntario, Canada , Application June 13, 1935,‘ Serial no. 26,445 4 claims.” (.01. 221-60) _ of. the tube is stopped the spring returns the Collapsible tubes and similar containers such as used for dispensing-fluid, semi-?uid or pasty valve to seated position. substances, have usually heretofore been pro-' vided ‘with. either a screw cap which is removed 5 to permit the contents .of the container to be dis charged, or a cap having a partial rotary move ment which in one position covers the discharge opening and in another position exposes the lat ter. Bothpf these types of closures are objec 10 tionable in that in the one case the cap is left ‘off by the user and in the other case the dis 20 vise a closure which’will automatically open up rected annular recess; a valve for said central opening; an annular plunger movable in the neck portion above the annular shoulder; spaced legs 10 connecting said valve and plunger; an annular ?ange on said plunger extending into the recess; and a spring in said recess normally tending to ~ '. 2. A collapsible tube or container having a neck‘ .15 portion provided with-a central opening in the top thereof; an annular shoulder formed at the lower end of said neck having an upwardly di rected annular recess; a valve for said‘ central opening; an annular plunger movable in the~ neck portion above the annular shoulder, spaced legs connecting said valve and plunger; a pair of spaced annular ?anges on said plunger extending into the recess; and a spring having one end positioned between said ?anges and its other end 25' in said recess normally tending to move the Fig. 1 is a vertical section of the closure; Fig. 2 a plan view of the same, the neck portion 30 of the tube being shown in sections; and Fig. 3 a perspective view of the valve member. In the drawing like numerals of reference in dicate corresponding parts in the different'fig plunger to seat the valve. v 3. Acollapsible tube or container having a neck ‘portion provided with a central outlet in the top thereof; an annular shoulder formed at the lower 30 end of said neck having an outwardly directed annular recess, an. annular plunger movable in said recess, an inwardly movable valve carried of a collapsible tube or container having the ex by said plunger for controlling said outlet; and resilient means in said recess normally tending 35 to move the plunger to seat the valve. tension 2 at its upper end in the upper wall of , which extension is provided the outlet 3, normally neck portion provided with a central outlet in the top thereof : an annular shoulder formed at the lower end of. said neck having van outwardly 40 ures. , Referring to Figs. 1 and 2, 5 indicates the top closed by a valve member 5. ' 4 move the plunger to seat the valve. is applied tosqueeze together the walls of the container and which will automatically, close ous ‘constructions such as illustrated in the ac companying drawing in which ' 40 ‘ to allow the contents to escape when pressure when the pressure on the container is relieved. My object may be attained by means of vari 35 _ portion provided with a central opening in the top thereof; an annular shoulder formed at the lower end, of said neck having‘ an upwardly di charge opening is left exposed, thus permitting the contents of the container adjacent the dis charge opening to dry, thus rendering the ma 15 terial un?t for use and making it di?icult to force the dry material adjacent the outlet out of the way to obtain the softer .and fresher material lower down in the container. The object of my invention is therefore to de - What I claim as my invention is:-'. 1. A'collapsible tube or container having a nec The neck or extension 2 of the tube is ‘formed with a central annular ?ange 8, forming an annular recess between which extend spaced annular flanges 9 on the under side of an annular plunger ill which carries, by means of the spaced legs ea, the valve 4. The spring 5 is positioned‘ 4. A' collapsible tube or container having _ a directed annular recess, an annular plunger mov able in said recess, an inwardly movable valve for controlling said outlet, means for‘maintaining said valve in spaced relationship to the plunger, said means being arranged to permit material to 45 between the plunger and bottom of the recess pass from the interior of the container to a and tends to raise the plunger to seat the valve. . position above the plunger before passing to the When the tube is squeezed the contents pass up outlet; and resilient means in said recess nor the centre of the ?ange 8 through the central 5;, hole of the plunger and between the spaced legs 495 and exert adownward pressure on the annu ‘ lar plunger to unseat the valve. When squeezing mally tending to move the plunger to seat the valve. 50 FRANK McLAUGI-ILIN.