Valve assembly including pressure relief mechanism

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9453588
SERIAL NO

14207768

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A valve assembly includes a housing having a first chamber, a second chamber, a valve seat disposed between the first chamber and the second chamber, a valve head disposed in the housing and moveable relative to the housing, a valve stem operatively coupled to the valve head for moving the valve head between the open and closed positions, and a pressure relief mechanism including a plug coupled to the valve stem and extending along a plug axis in the bore of the valve head moveable relative to the valve head from a sealed position preventing fluid communication through the bore to an unsealed position allowing fluid communication through the bore for relieving pressure differences between the first chamber and the second chamber when the valve head is in the closed position.

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First Claim

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Patent Owner(s)

  • MARSHALL EXCELSIOR COMPANY

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Blanchard, Frederick W Battle Creek, US 34 575
Hoffman, Alex L Bellevue, US 19 152

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