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.:
Date of Patent:
Mar. 21, 2017
Filed:
Jun. 25, 2013
Applicants:
Hy B. Nguyen, Upland, CA (US);
Thuan an Dinh, Tustin, CA (US);
Carlos E. Arellano, Garden Grove, CA (US);
Inventors:
Hy B. Nguyen, Upland, CA (US);
Thuan An Dinh, Tustin, CA (US);
Carlos E. Arellano, Garden Grove, CA (US);
Assignee:
SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION, Solon, OH (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 15/02 (2006.01); F16F 1/373 (2006.01);
U.S. Cl.
CPC ...
F16K 15/025 (2013.01); F16F 1/3732 (2013.01); F16K 15/021 (2013.01); F16K 15/028 (2013.01); Y10T 137/7837 (2015.04);
Abstract
A spring for use in a check valve is formed from a single piece of a polymeric material and includes a proximal end, a distal end, and a body positioned between the proximal end and the distal end. The body includes a wall, a proximal opening on the wall and a distal opening on the wall, and a bellows between the proximal opening and the distal opening. Further included is a process of forming the spring.