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.


  1. Advanced Patent Search
Publication numberUS1925926 A
Publication typeGrant
Publication dateSep 5, 1933
Filing dateMar 19, 1932
Priority dateMar 19, 1932
Publication numberUS 1925926 A, US 1925926A, US-A-1925926, US1925926 A, US1925926A
InventorsConrad Kunkel
Original AssigneeConrad Kunkel
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Self-sealing paste tube cap
US 1925926 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Sept. 5, 1933. KUN E 1,925,926

SELF SEALING PASTE "I UBE CAP Filed March 19, 1932 Patented Sept. 5, 1933 UNITED srArEs PATENT orrrce 1,925,926 saw-samnorasrs TUBE car Conrad Kunkel, Oceanside, Lori: Island, N. Y. Application ma 1932. Serial No. 599,966 2 claims. (01. 221+) This invention relates toa self sealing tooth paste tube and has for an object to provide an improved self sealing tooth paste tube, equally suitable for shaving cream, salves' or other types of paste, which will open automatically whenever pressure is applied to exude the paste therein and will close to seal the tube as soon as the pressure is released.

A further object of this invention is to provide an improved self sealing paste tube. cap which may be applied to any conventional paste tube thus converting a regular tube into a self sealing tube. 1

Still a further object of this invention is to provide an improved combination self sealing cap and valve-which may be applied to any conventional paste tube, making the same a self sealing tube.

With the foregoing and other objects in view, as will hereinafter become apparent, this invention comprises the constructions, combinations and arrangements of parts hereinafter set forth, disclosed and shown on tl eaccornpr ny ing drawing. In this drawing,

Figure l is a vertical section of a collapsible tube showing self sealing valve, said valve being closed in this figure.

Figure 2 is a sectional view similar to Figure l, but showing the sealing valve in open po= sition.

Figure 3 is a top plan view of Figure i showing the Emmi-spherical valve closed.

Figure d is an enlarged plan view of the hernispherical valve, and

Figure 5 is a sectional view 5-5 of Figure There is shown at 10 a conventional collapsibletube having the usual neck 11 and discharge nozzle 12, which is threaded in the usual manner as at 13.

Asap it having an opening 15 therein is threaded on the threads 13 of the nozzle 12. The cap is will be formed preferably as shown, having the threaded portion 16 and an outer plate portion 1'? of springy material, the plate 17 being separated from the threaded portion 16 by an internal flange 18. A spider member comprising a ring 19 is adapted to fit under the flange 18 on the edge of the nozzle 12 and has a non fiexible bridge 26 holding anemispherical valve 21 centrally thereof below the opening 15.

To assemble this self sealing tooth paste cap the ring 19 is placed on the edge of the nozzle 12 and the cap 14 threaded thereover until the taken on line flange 18 comes in contact with the ring 19 and presses securely against the end of nozzle 12-. Obviously, the tube may be initially provided with this type of cap or this type of cap may be substituted for the conventional cap initial-,- ly provided therefor. When there is no pressure placed on the body of the collapsible tube 10, the plate 17 will remain normally fiat, thus bringing the opening 15 against the sealing 'valve 21 securely excluding the air therefrom and preventing any waste of the material 22 in the tube. l

When it is desired to project. the paste or other material 22 from the tube it is only necessary to press thecollapsiblel tube 10, This will cause the material 22 to press against the bottom of the springy plate 17 causing it to 'nd in the position shown in Figure 2, thereby spacing the orifice 15 away from the valve 21 and allowing the material 22 toflow therethrough until the pressure on the tube 10 is released, whereupon the spring plate 1'? will again spring baclr to the flat position again sealing the tube.

The novel features and the operation of this device will be apparent from the foregoing description. While the device has been shown and the structure described in detail, it is obvious that this is not to be considered limited to the exact form disclosed and that changes may be made therein within the scope of what is claimed without departing from the spirit of the invention.

Having thus set'forth and disclosed the nature of this invention, what is claimed is:

1. A self sealing tube comprising in combination a discharge nozzle, a cap, means for securing said cap on said nozzle, a spring plate forming the closed end of said cap, means for spacing said spring plate from the end of said nozzle, comprising an internally projecting horizontal flange on said cap, a valve, said spring plate having an opening therethrough cooperating with said valve to prevent discharge of the contents from said tube when the plate is mg in unsprung position, and means for detachably securing said valve across the nozzle opening, said means comprising a spider on which said valve is mounted, a peripheral portion of said spider being removably secured between said 105 spacing means and the outer end of the tube neck.

2. In a self-sealing paste tube closure, a cap having a threaded securing portion, a spring plate closing one end of said cap, an internal- 1w ly projecting horizontal flange between said rial extending diametrically across the ring to the center of which said valve is rigidly attached, said ring being removably secured beneath said internally projecting horizontal flange when the cap is attached to a container neck.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2743852 *May 25, 1951May 1, 1956 Closure cap for collapsible containers
US3215319 *Jan 2, 1964Nov 2, 1965Laker Thomas LCollapsible dispensing container
US3777948 *May 24, 1972Dec 11, 1973Ethyl Dev CorpPlastic container with lockable dispensing closure
US4314658 *Jan 30, 1980Feb 9, 1982Laauwe Robert HViscous product dispensing squeeze bottle having a self-venting automatic shut-off valve
US4672996 *May 22, 1986Jun 16, 1987Cem CorporationSelf-regulating valve
US4771925 *Nov 21, 1983Sep 20, 1988Henkel Kommanditgesellschaft Auf AktienFlap valve for a dispenser
US4877624 *Apr 19, 1988Oct 31, 1989Cem CorporationDigestion and sterilization methods and apparatus
US5108007 *Apr 25, 1991Apr 28, 1992Allergan, Inc.Valve controlled squeezable fluid dispenser
US5346108 *Oct 26, 1992Sep 13, 1994Pasinski Arthur MGaged dispensing apparatus
US5918777 *Feb 21, 1996Jul 6, 1999Owens-Brockway Plastic Products Inc.Dispensing package for viscous liquid product
US5950878 *Aug 4, 1997Sep 14, 1999Steris CorporationDispensing tube valve assembly
US6041975 *Aug 27, 1998Mar 28, 2000Owens-Brockway Plastic Products Inc.Dispensing package for viscous liquid product
US6241128Dec 22, 1998Jun 5, 2001Owens-Brockway Plastic Products Inc.Dispenser package for fluent products and method of manufacture
US6311878Jan 7, 2000Nov 6, 2001Owens-Brockway Plastics Products Inc.Dispensing package for fluent products
US6357625Jul 24, 2001Mar 19, 2002Owens-Brockway Plastics Products Inc.Dispensing packages for fluent products
US6394323Aug 24, 1999May 28, 2002Owens-Brockway Plastic Products Inc.Dispenser package for fluent products and method of manufacture
US6615473Apr 11, 2001Sep 9, 2003Owens-Brockway Plastic Products Inc.Method of making a container and closure
US6622895Mar 11, 2002Sep 23, 2003Owens-Brockway Plastic Products Inc.Dispenser package for fluent products and method of manufacture
US6757957Jun 24, 2003Jul 6, 2004Owens-Brockway Plastic Products Inc.Dispenser package for fluent products and method of manufacture
US20040003489 *Jun 24, 2003Jan 8, 2004McClean Craig E.Dispenser package for fluent products and method of manufacture
U.S. Classification222/494, 222/545, 222/542
International ClassificationB65D47/04, B65D47/20
Cooperative ClassificationB65D47/2081
European ClassificationB65D47/20E4B