Slit valve for closing off containers

Details Slit valve for closing off containers Slit valve for closing off containers

1996-05-14

1998-04-28

Bomberg, Kenneth

Dispensing

Slitted resilient diaphragm or nipple

222494, B65D 3552

Patent

active

057434433

ABSTRACT:
A self sealing slit valve for closing off a container opening comprises a diaphragm part having a slit-shaped pour opening. The diaphragm part is made of a first thermoplastic elastomer material having resilient property, which is integrally formed to a base part made of a second thermoplastic material different from the first thermoplastic elastomer material. The slit valve according to the present invention is a molded part which is formed in a single operation by a two-component injection molding process.

REFERENCES:
patent: 4749108 (1988-06-01), Dornsbusch et al.
patent: 5271531 (1993-12-01), Rohr et al.
patent: 5390805 (1995-02-01), Bilani et al.
patent: 5409144 (1995-04-01), Brown
patent: 5472122 (1995-12-01), Appleby
patent: 5632420 (1997-05-01), Lohrman et al.

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