Thuan Huynh Dinh

US Patent:

20140000730, Jan 2, 2014

Filed:

Jun 25, 2013

Appl. No.:

13/926569

Inventors:

Hy B. NGUYEN - Upland CA, US
Thuan An DINH - Tustin CA, US
Carlos E. ARELLANO - Garden Grove CA, US

International Classification:

F16K 15/02
F16F 1/373

US Classification:

137511, 264238, 267153

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.