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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10274094 B1

PDFFull Text
Date of Patent:
Apr. 30, 2019

Filed:

Mar. 11, 2014

Check valve with improved response time

Applicant:

Westport Power Inc., Vancouver, CA;

Inventor:

Kamal Hatami Aghdam, Vancouver, CA;

Assignee:

WESTPORT POWER INC., Vancouver, CA;

Attorney:

Seed IP Law Group LLP

Primary Examiner:

Peter J Bertheaud

Int. Cl.
CPC ...
F16K 15/02 (2006.01); F04B 39/10 (2006.01); F04B 53/10 (2006.01); F04B 15/06 (2006.01); F16K 27/02 (2006.01); F04B 53/16 (2006.01); F04B 15/08 (2006.01);
U.S. Cl.
CPC ...
F16K 15/023 (2013.01); F04B 15/06 (2013.01); F04B 39/102 (2013.01); F04B 39/1026 (2013.01); F04B 39/1033 (2013.01); F04B 53/10 (2013.01); F04B 53/102 (2013.01); F04B 53/1035 (2013.01); F04B 53/16 (2013.01); F16K 15/021 (2013.01); F16K 15/028 (2013.01); F16K 27/0209 (2013.01); F04B 2015/081 (2013.01); Y10T 137/7895 (2015.04); Y10T 137/7909 (2015.04);
Abstract

A check valve with improved response time comprises a valve member which has a central portion of a substantially convex shape and a guide portion that surrounds the central portion. The central portion has a central convex curvature extending towards the outlet port of the check valve, in the direction of the fluid flow. The guide portion has a weight to area ratio that is smaller than the weight to area ratio of the central portion. Such a check valve has an overall reduced weight of the valve member allowing a faster response time when the valve switches between its closed and open positions.

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Hatami Aghdam, Kamal. (2019). Check valve with improved response time (U.S. Patent No. 10274094). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10274094

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