Patent · US Active

Check valve for an engine breather assembly

US8893690B2 · kind B2 · utility

13Cited by

27References

17Claims

0Family size

Assignee

Caterpillar Inc. · US

Inventors

Deven John Efta · Mayville, US
D. Brent Cluskey · Brimfield, US

Key dates

Filing date	May 10, 2012
Grant date	Nov 25, 2014
Priority date	—
Expiry date	Feb 16, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/7879
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A check valve for a breather assembly includes a valve seat defining a seat opening, a valve stop coupled to the valve seat, and a valve element disposed between the valve seat and the valve stop and including a first element surface and a second element surface. The valve element may be sufficiently flexible to actuate between a closed position, in which the first element surface engages the valve seat, and an open position, in which the second element surface engages the valve stop. The valve element may further include a passage, such as apertures, extending from the first element surface to the second element surface.

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