Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS1650967 A
Publication typeGrant
Publication dateNov 29, 1927
Filing dateJun 8, 1927
Priority dateJul 15, 1926
Publication numberUS 1650967 A, US 1650967A, US-A-1650967, US1650967 A, US1650967A
InventorsSmith Arthur E
Original AssigneeSmith Arthur E
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Closure for collapsible tubes
US 1650967 A
Images(1)
Previous page
Next page
Description  (OCR text may contain errors)

Nov. 29, 192 7.

A. E. SMITH CLOSURE FOR COLLAPSIBLE TUBES Original Filed July 15, 1926 INVENTOR. ARTHUR E. SM/TH A TTORNE Y.

Patented Nov. 29, 1927.

UNITED STATES PATENT OFFICE.

ARTHUR E. SMITH, OF LOS ANGELES, CALIFORNIA.

CLOSURE FOR COLLAPSIBLE TUBES.

Original application filed July 15, 1926, Serial No. 122,565. Divided and this application filed June 8,

1927. Serial No. 197,363.

, This invention relates to closures for collapsible tubes.

The general object of the invention is to provide a valved closure for collapsible tubes wherein means is provided for assuring that the valve will remain closed when pressure is removed from the tube.

Other objects of the invention will be apparent from the following description taken in connection with the accompanying draw ings, wherein;

Fig. 1 is a perspective view of a collapsible tube having my dispensing cap thereon;

Fig. 2 is a central sectional view through the cap shown in Fig. 1;

Fig. 3 is an enlarged plan view looking at the end of the closure and showing the manner of puncturing the closure, and

Fig.4 is a sectional view through the 2 closure in position.

This application is a division of my prior application Serial Number 122,565, filed July 15, 1926.

Referring to the drawing by reference characters, I have indicated a collapsible tube generally at 10. This tube ma contain dentifrice, paste, or other materia and the body of. the tube is preferably flexible while the end portion 11 is more or less stifi'. This neck 12 which has a dispensing aperture 14 therein.

The neck 12 is. shown as threaded as at 15 although it will be understood that means other than the threads may be used for securingthe closure indicated generally at 16 r on the neck.

This closure 16 as shown is preferably made of rubber which is shown'as of uniform thickness and is provided with a skirt portion 17 whichengages the threads 15..

- The closure is provided with a dispensing hole 20. This hole 20 is made while the end of the cap is stretched or put under tension as shown in Fig. 3, by means of a pointed instrument shown at 21. After piercing the implement 21 is removed and when the pressure is released the hole 20 at once hecomes closed.

12 of the tube and suflicient pressure is apphed the closure will stretch so that the contents-of the tube W111 be dispensed. When end portion 11 is provided with a threaded When the closure is arranged on the neckpressure is removed the hole 20 automatically closes.

It will be understood that the hole 20 may be made after the closure is in place and tension may be applied as shown in Fig. 3. If desired tension may be applied by squeezing the tube 10 to thereby place tension on the closure 16 and the closure may be pierced while it is under this tension due to presing the closure while the material of the wall is under tension, whereby the natural contractive effort of the resilient closure is utilized to effectually seal said aperture and whereby when material is discharged therethrough and the expelling pressure is released, the contractive action in closing the aperture becomes effective to cut off the material.

2. In paste dispensing, the combination with a collapsible paste tube having a discharge neck, of an elastic rubber nipple engaged over said neck and forming both a sealed tube closure and paste holder, said nipple having a highly elastic thin wall of substantially the same .thickness throughout and continuous and imperforate normally in the absence of pressure, said wall having a point of cleavage therethrough produced by a fine perforation formed therein while the material of the wall is stretched in an attenuated condition, whereby the natural contractive effort of the rubber is utilized to effectually seal said perforation and whereby when paste is discharged therethrou h and the expelling pressure is release the contractive action in closing the perforation becomes effective to cut off the paste and to squeeze the residual paste out of the closing opening.

In testimony whereof, I hereunto afiix my signature.

ARTHUR E. SMITH.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2552715 *Jul 17, 1947May 15, 1951Frederick Gray TomPressure-operated dispensing nozzle for collapsible tubes
US2569073 *Jun 20, 1949Sep 25, 1951Robinson Allen DPaste applier with self-closing valve
US4507113 *Nov 22, 1982Mar 26, 1985Derata CorporationHypodermic jet injector
US4852726 *Dec 15, 1988Aug 1, 1989Genius LeeMultiple water color combination set
US7077296Jun 25, 2002Jul 18, 2006Aptargroup, Inc.Dispensing valve
DE1082852B *Jul 8, 1957Jun 2, 1960Hans Lothar SchudtVerschluss aus Kunststoff fuer Tuben und Behaelter mit pastigem Inhalt mit unverlierbarem Verschluss-Teil
Classifications
U.S. Classification222/490, 206/1.9
International ClassificationB65D47/20, B65D47/04
Cooperative ClassificationB65D47/2031
European ClassificationB65D47/20E2