Fluid pump

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20070248475A1
SERIAL NO

11350860

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A fluid pump includes a chamber and a plunger extending into the chamber and supported for sliding movement on a suction stroke to introduce fluid into the chamber and on a discharge stroke to force fluid out of the chamber. A driver slides the pumping member in opposite directions. A seal ring is located between the chamber and the pumping member and permits the sliding movement of the pumping member. The seal ring has an outer annular portion having a generally flat cross-section, clamped in a wall of the chamber and an inner annular portion having a bulbous cross-section and in sliding sealing engagement with the pumping member.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
DEFOND COMPONENTS LIMITEDCHAIWAN INDUSTRIAL CENTRE 5TH FLOOR 20 LEE CHUNG STREET CHAI WAN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chan, Kai Chi Chaiwan, HK 11 163
Ho, Man Ting Chaiwan, HK 5 86

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