Non-return valve

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6968863
SERIAL NO

09763078

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A non-return valve having a circumferential face and a channel with a mouth at one end of the channel and located in a groove having circumferential edges which are adjustable and fixable relative to each other and a valve comprising a O-ring manufactured of an elastic material for releasing the mouth at a predetermined pressure in the channel.

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Patent Owner(s)

Patent OwnerAddress
SPIRO RESEARCH B VHOLLAND HAIER HELMOND NORTH BRABANT

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Roffelsen, Franciscus Mauritslaan 7, Helmond, NL 15 117

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