Patent · US Active

Pressure relief valve

US8684034B2 · kind B2 · utility

1Cited by

5References

11Claims

0Family size

Assignee

Nanospace AB · SE

Inventors

Tor-Arne Gronland · Sollentuna, SE
Pelle Rangsten · Storvreta, SE
Kerstin Jonsson · Uppsala, SE
Johan Bejhed · Uppsala, SE

Key dates

Filing date	Oct 19, 2009
Grant date	Apr 1, 2014
Priority date	—
Expiry date	Jul 29, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/87555
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A micromechanical pressure relief valve arrangement comprises a stack of wafers. An active pressure relief valve is realized within the stack of wafers. A passive pressure relief valve is also realized within the stack of wafers, arranged in parallel to the active pressure relief valve. A check valve, also realized within the stack of wafers, is arranged in series with both the active pressure relief valve and the passive pressure relief valve.

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