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公开(公告)号:US09599240B2
公开(公告)日:2017-03-21
申请号:US13926569
申请日:2013-06-25
申请人: Hy B. Nguyen , Thuan An Dinh , Carlos E. Arellano
发明人: Hy B. Nguyen , Thuan An Dinh , Carlos E. Arellano
CPC分类号: F16K15/025 , F16F1/3732 , F16K15/021 , F16K15/028 , Y10T137/7837
摘要: 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.