US2512412A - Self-sealing dispensing cap and closure for containers - Google Patents

Description

June 20, 1950 c. N. OHANAN 2,512,412

ENSING CAP S -SEAL DISP A CLOSURE FOR CONTAINERS Filed Sept. 5, 1946 CoZionusNBo/zanem Patented June 20, 1950 SELF-SEALING DISPENSING CAP AND CLOSURE FOR CONTAINERS Collonus N. Bohanan, Oak Park, Ill. Application September 5, 1946, Serial No. 694,88?

2 Claims.

This invention relates to a novel construction of closure for use with containers and which is especially constructed and arranged to permit dispensing of the contents of a container without complete removal of the closure to thus afford a closure which is normally non-detachable, thus eliminating the likelihood of loss of the closure.

More particularly, it is an object of the invention to provide a closure for the aforedescribed purpose which may be readily turned for either positioning the closure to provide a dispensing outlet for the container to which it is applied or for sealing the outlet thereof.

A further object of the invention is to provide a closure of the above described character which is so constructed that it may be readily maintained in a sanitary condition and which will effectively function to substantially eliminate waste of the contents of the container to which it is connected.

Various other objects and advantages of the invention will hereinafter become more fully apparent from the following description of the drawings, illustrating preferred embodiments thereof, and wherein:

Figure 1 is a side elevational view of one embodiment of the self-sealing cap closure and illustrated as applied to a collapsible paste dispensing tube;

Figure 2 is an enlarged longitudinal sectional view taken substantially along a plane as indicated by the line 2-2 of Fi ure l, and showing the closure in a closed position;

Figure 3 is a similar View, but showing the cap closure in an open, dispensing position;

Figure 4 is a cross sectional view taken substantially along a plane as indicated by the line 4--4 of Figure 3;

Figure 5 is a plan view of one element of the closure and Figure 6 is a view similar to Figure 1, but showing the closure applied to a rigid container, such as a bottle or jar.

Referring more specifically to the drawing, the improved self-sealing cap closure is designated generally H and is illustrated in Figures 1 to 4 as applied to a conventional collapsible dispensing tube of the type generally employed for containing and dispensing such iternsas tooth paste and shaving cream, designated generally l2; and in Figure 6, the cap closure II is illustrated as applied to a bottle or jar, designated generally l3 of the type generally employed preferably to contain a liquid, as for example a shaving 10- v 2 7 tion, but-which may also be of the type employed for containing a powdered or granulated material, as for example talcum powder or tooth powder.

The self-sealing cap closure ll includes a cap, designated generally l4 having an enlarged internally threaded end 15, preferably provided with an outwardly extending flange I 6. The

internally threaded open end I5 is adapted to engage the externally threaded neck ll of the tube l2, or the externally threaded neck I8 01 the bottle, jar or other rigid container is. The cap l4 inwardly of its threaded portion I5, is provided with an outwardly facing annular shoulder l9, forming a seat for a'resilient washer 20 which is disposed therebeneath. Inwardly or above the washer 20, the cap 14 is provided with a hollow interior forming a chamber 2 I, the outer or upper end of which is restricted by a concave upper portion 22 which communicates with a restricted opening 23 in the outer or upper end of the cap 14. Externally, the cap I4 is provided at its upper end with a convex portion24 which tapers in thickness toward the opening 23, so

that the wall of the cap, defining said opening, as

- its inner or'upper side with a frustro-conical portion 21 which joins with the lower or inner end of the circular neck portion 28 which is of a diameter only slightly less than the diameter of the opening of the washer 20 which is disposed thereon and at the base thereof and adjacent the frustro-conical portion 21. The supplementary neck 25 is provided with a longitudinal bore 29 which extends through a substantial portion of its neck portion 28 and into the base 26 and which is provided with an annularly flared end 30, formed in the base 26 and which registers with the bore 3| of the tube neck ll, and which is of substantially the same diameter as the bore 3 l, at its enlarged end. The neck portion 28 is provided with a diametrically extending bore 32 adjacent its upper end of substantially the same diameter as the bore portion 29 and into which said bore portion opens. The outer end of the neck 28 terminates in a convex head 33 which substantially conforms to the curvature of the

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