Self-closing dispensing valve made of a plastomer or a thermoplastic elastomer

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11912472
SERIAL NO

17438611

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A self-closing dispensing valve is made of an elastic material and includes a valve head with a dispensing orifice, a circular peripheral retaining flange spaced apart from the valve head in an axial direction, and a connector sleeve integrally connected with the valve head on one end and the retaining flange on another end. The elastic material is a plastomer or a thermoplastic elastomer. The connector sleeve is substantially form stable. The valve head is connected to an upper end of the connector sleeve by a hinge portion that is U-shaped in cross section. The wall thickness of the hinge portion is smaller than the wall thickness of the connector sleeve and is staggered at the transition between the connector sleeve and the hinge portion. Alternatively, if the connector sleeve is omitted, then the valve head is directly connected to the retaining flange.

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First Claim

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Patent Owner(s)

  • WEENER PLASTICS GROUP B.V.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Den, Boer Sebastiaan Wilhelmus Josephus Twello, NL 19 160
Ellenkamp-Van, Olst Lenny Marita Doetinchem, NL 10 54
Mertens, Alwin Apeldoorn, NL 2 0
Pater, Marcel Doorn, NL 4 7

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