Self-closing valve-and-lid assembly

Details Self-closing valve-and-lid assembly Self-closing valve-and-lid assembly

1981-04-30

1984-04-17

Bartuska, F. J.

Dispensing

With discharge assistant

Fluid pressure

222513, B65D 8314

Patent

active

044429592

ABSTRACT:
A valve-and-lid assembly adapted for closing off the open top end of a pressurized container comprises a lid having a dome part protruding on an upper or lower face of the lid and having a central opening. A valve disc of elastically resilient material is lodged in the dome part and extends with a valve head part thereof through the central opening. The latter is surrounded by an axially extending collar portion of the dome part depending from a flat top wall of the latter and having an annular rim about the opening which is in sealing contact with a contact face of the valve head when the valve is closed, thereby obturating product ducts provided in the valve disc. Pressure on the face of the valve disc opposite the valve head by means of a tubulure or the like actuating means, which can carry a conventional atomizer head or filling head, moves the contact face of the valve head away from the collar portion rim and opens free communication between the interior of the container covered by the lid and the interior of the tubulure.

REFERENCES:
patent: 2696934 (1954-12-01), Ashton
patent: 2845203 (1958-07-01), Potash
patent: 2863699 (1958-12-01), Elser
patent: 3540634 (1970-11-01), Mayercik
patent: 3613728 (1969-09-01), Steiman

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