US2202653A - Closure device - Google Patents

Description

' May 28, 1940 I A R. GLIDDEN CLOSURE DEVICE Filed May 19, 1939 IN V EN TOR.

Patented May 28, 1940 fUNlTED' STATES" ATENT o FicE' 4 onosii mf fiivlca 2 Claims.

This invention relates to closure devices for that class of receptacle, such as collapsible tubes, employed as containers for liquid or paste toilet preparations, and objectively aims to provide an improved form of sliding valve assuring easier operation than devices previously devised for this purpose, to provide a closure device of simple, inexpensive, and yet durable construction and one which most advantageously adapts itself to production either as a part of or as a separate thread fitting for the container, and to provide a device which is particularly characterized by self-closing capabilities more emcient than those hereto-,' fore produced, the latter object being achieved by means which, from a consideration of assembly as well as production, are of such a facile nature as to eliminate the objections which have precluded commercial use of previous closures functioning to thisend.

The invention consists in certain novel features of construction and in the combination and arrangement of parts hereinafter described and claimed.

In the drawing: I

.Figure 1 is a top plan view illustrating a closure device according to the present invention applied to a collapsible tube.

Figs. 2 and 3 are longitudinal vertical and transverse vertical sections taken on respective lines 2-2' and 3-3 of Fig. 1; and

'Fig. 4 is a sectional view similar to Fig. 2 representing a device according to the present invention in which the valve-seat for the sliding closure is formed directly on the tube.

The numeral 5 in the drawing designates a suitable container, in this instance a collapsible tube, for which my closure device is adapted, the tube being of that character universally employed as a receptacle for shaving and skin-- creams, tooth pastes, greases, paints, and other materials of like or similar physical characteristics permitting extrusion through an outlet duct 6 by the act of pressing the collapsible body I of the tube. The duct is disposed axially in relation to a relatively rigid discharge neck, and according to the present invention this neck may be externally threaded and a fitting 8 embodying features peculiar to the present invention detachably applied thereto or this fitting may have its counterpart formed as a head 8' integral with the tube.

In producing these parts 8 or 8', as the case may be, I form the same with a substantially flat upper surface in which is a valve-way for a gatea through-channel projected diametrically of the head and, considered transversely, having a dovetail shape providing side walls which overhang the floor and act 'as retaining flanges for the valve. .Said valve is of a length exceeding that of the valve-way and at its approximate mid-length is provided with an orifice 10 adapted by longitudinal movement of the valve-to be brought into register with the outlet from the duct 6, this longitudinal movement being opposed by a rubber ring l'l seating in complementary recesses provided in the rear end 9' of the valve and in the distal wall of the head. Below the recess in the valve is a depending lug l2 the oflice of which is to limit the ring-influenced closing movement of the valve. 7 s

It is to be noted that the rubber ring occupies a plane diagonal to the path of travel of the valve and with the anchored portion thereof disposed below the flexing part, the purpose thereof being to influence the valve downwardly and thereby hold its under-surface in port-sealing contact with the floor of the valve-way.

The invention is believed readily understood from the foregoing description taken in connection with the accompanying drawing, various changes in form, proportions, and application being clearly within the spirit of the disclosure.

What I claim, is:

1. A closure device for a receptacle comprising, in combination, a receptacle head formed with a flattened upper surface-and having a duct' leading thereto for the discharge of the receptacle contents, a channel in said head transecting the duct and projected the width of the head, a sliding gate valve of a length exceeding that of the channel seating in the latter and having an aperture movable into and out of registering relation to the outletend of the duct by the act of moving the valve longitudinally in thechannel, a recess formed in the side wall of the head below one end of the channel, a recess complementary thereto and formed in the oppositely disposed end wall of the valve above the plane of the valves channel-seating under-surface, and a ring of elastic rubber seating in the recesses to occupy a plane diagonal to and traversing the plane of the channel and operating by contraction to influence the valveinto closed position.

2. A closure device for a receptacle comprising; in combinatiom'a receptacle head having a duct leading to its upper surface for the discharge of the receptacle contents, a valve-way channeled in the head in transecting relation to the outlet type valve 9, the valve-way being in the nature ofend of the duct, a sliding gate valve seating in u the valve-way and movable longitudinally thereof into and from closing relation to the outlet from said duct, means by which thumb pressure is applied to the valve for moving the same into open position, and a ring of elastlc rubber encircling the head and engaging said valve for yieldlngly opposing said opening movement of the valve, said ring being characterized inthat the same occupiesa plane diagonal to and traversing s the plane of the valve-way such-that by its contractive influence pressure is applied to the valve to cause the valve to bear against its seat as wen as move longitudinally of the valve-way into c1osing relation to said outlet from the duct.

ARTHUR R. GLIDDEN.

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