Patent · US Active

Non-return valve

US8607825B2 · kind B2 · utility

2Cited by
10References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 24, 2011
Grant dateDec 17, 2013
Priority date
Expiry dateJan 21, 2032

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T137/7892
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A non-return valve includes a valve housing having at least one inlet, at least one outlet, a first valve seat and a second valve seat; and an at least partially flexible sealing member forceable into a scaling engagement with the first valve seat in response to a first differential pressure and forceable into a sealing engagement with the second valve seat in response to a second differential pressure.

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