US1597665A - Closure - Google Patents

Description

Aug. 31, 1926.

L. BALTZLEY CLOSURE Filed Feb. 5. 1925 INVENTOR qnmQ M TTORNEY engage with Patented Aug. 31, 1926.

UNITED STATES 1,597,665 PATENT OFFICE.

LOUIS E; BALTZLEY, OF GLEN RIDGE, NEW JERSEY, ASSIGN'OR TO JAMES S. CUSH- MAN, OF NEW YORK, N. Y.

CLOSURE.

Application filed February 5 1926. Serial No. 86,140.

The present invention relates to closures for paste tubes and the like.

Special objects of the invention are to provide a closure structure for paste tubes or other contalners which can be sealed air and liquid-tight so as to fully protect and preserve the contents of the container and which can be quickly and easily operated to enable discharge of the contents without removal or disconnection of any parts.

In the drawing. accompanying and forming part of this specification the invention is illustrated applied and in use as a paste tube closure but it should be understood that the invention is not limited to this particular usepand further that the structure'may vary without departure from the broad spirit and scope of the invention as hereinafter defined and claimed. 1

t Figure 1 is a top plan view of a paste tube having the invention ap lied to and incorporated therein, with hal of the closure cap removed to show the discharge slots in the neck of the tube.

Figure 2 is a side view of the the device with the parts in closed relation and shown partly in section.

Figure 3 is a broken sectional view showing the cap opened for discharge purposes and bthe paste beirfg exuded in the form of a tu The container 5 is shown in the form of a paste tube having an externally screw threaded neck 6. The end of this neck is closed at the center at 7 and open for discharge purposes about such closed central portion-by arcuate slots 8. The closed central portion further is shown elevated above the plane of the perforate side portion in thel nature of a dome, but this is not essentia Engaged upon the screw threaded neck is a screw cap 9 suitably shaped to afford convenient grip for turning and this cap has an imperforate side portion 10 overstanding the slotted side portion of the discharge neck and a perforate or open central mouth portion 11 in line with the closed central part 7 of the neck. i

There is preferably seated within the cap, an annular asket 12 of cork or the like for sealing t e discharge slots.

Also, if desired, a secondary closure may be provided by having the mouth of the cap the. dome of the neck, as at 13,

to form avalve. An annular cavity is indicated at 14 betweenthe main closure at the gasket and the secondary or valve 010- sure at 13 to provide an annular throat or passage for the paste at the 1 side of the domed portion 7 Figure 2 illustrates how when the cap is turned vdown to seat thegasket' over the discharge ports, the tube will be absolutely sealedand the valve elements at 13 will pro vide an additional or suplplementaryclosure.

Figure 3 shows how w en the cap is turned back, the gasket will be raised to uncover the discharge ports and 'a continuous annular passage will be thereby opened, permittmg free discharge of the contents in a tubular form, such as indicated at 15'. As the capneed not be removed to efiect this discharge, cooperating elements may be provided on the container and cap, such as indicated at 16, 17 to prevent the cap being turned far' enough to eifect complete removal of the same. The lug 16 on the container may be of solid construction and the lug 17 on the cap be in the form of a finger which can be bent inward to cooperate with the stop'16 after the cap has been fi rst sealed air-tight and hence can be preserved indefinitely in their original condition and the device is easily kept clean and free of any excess by simply wiping off the end of the cap which as shown in Figure 2, preferabl comes flush with the end of the neck.

at is claimed is:

1. In a closure structure, a discharge neck having a protruding central plug portion andports at the-sides of said plug, a cap having a screw threaded engagement over the neck, said cap having a central discharge orifice in line with the plug and an annular closure portion overstanding the side ports and conforming to said ported surface and an annular gasket of compressible material surrounding the protruding plug and overstanding the side ports, said gasket entirely occupying the closure portion of the cap overstanding the side ports so as to completely seal the ports and the end ofthe cap in which the central'discharge orifice is formed cooperating with'the end, of the plug when the cap is closed to completely seal the neck and leave no exposed pockets.

2. In a closure structure, a discharge neck having a protruding central portion and ports at the sides of said protrusion, a cap engaged with said neck having a closure portion overstanding the side ports of the neck and a discharge mouth receiving the central protrusion of the neck and a com pressible gasket of annular form within the cap overlyin the side ports of the neck and covered y the closure portion of the cap, the openin in the center of the annular gasket being oi a size to receive the central protrusion of the neck, the protrusion of the neck and the surrounding portion of the cap having substantially parallel walls-defining an annular throat leading from the ports and the discharge mouth of the cap terminating substantially flush with the end of the protrusion and engageable therewith when the cap is in closed position.

3. In a closure structure, a discharge neck having a central protruding plug and ported at the side of said plug for discharge purposes, a cap havin gagement over the nec said cap having a central discharge orifice in line with the plug and an annular closure portion overstanding and completely covering and conforming to the surface of the ported side portion of the neck and an annular gasket having an area equal to'said closure portion and entirely covering the orted side portion of the neck,'sa1d gas at surrounding the plug when the cap is seated, but the 36 opening in said gasket being larger than the plug to permit free movement of the gasket over the plug and free discharge about the plug through the opening in the gasket, the

end of the plug substantially filling the dis- 40' charge orifice and standing substantially flush with the top of the cap when the cap is seated.

In witness whereof, I have hereunto set my hand this 18th da of August, 1924.

LOU S E. BALTZLEY.

screw threaded en- 25

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