Valve seals

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United States of America Patent

PATENT NO 8814138
APP PUB NO 20130092859A1
SERIAL NO

13271873

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A seal used in a valve includes a ring-shaped cartridge. The cartridge has a first portion and a second portion. The first and second portions hold a sealing portion, and the first and second portions have respective first and second curved surfaces adjacent to a sealing surface of the sealing portion. Radii of curvature of the curved surfaces enable an initial point of contact between a flow control member and the cartridge to be on the sealing surface when the flow control member moves to a closed position.

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First Claim

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Patent Owner(s)

  • FISHER CONTROLS INTERNATIONAL LLC

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Helfer, Wade Jonathon Ames, US 12 26

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