Patent · US Active

Valves

US9169935B2 · kind B2 · utility

0Cited by
16References
7Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 2, 2013
Grant dateOct 27, 2015
Priority date—
Expiry dateDec 2, 2033

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T137/7898
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

Valves, and particularly check valves, are detailed. The valves may isolate a spring or other biasing member from flowing fluid so as to reduce the possibility of damage to the spring caused, for example, by chemicals contained in the fluid. In some versions of the valves, the spring may be positioned within a cavity of a cover sealed from the fluid.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.