The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 01, 2014
Filed:
Oct. 19, 2009
Applicants:
Tor-arne Grönland, Sollentuna, SE;
Pelle Rangsten, Storvreta, SE;
Kerstin Jonsson, Uppsala, SE;
Johan Bejhed, Uppsala, SE;
Inventors:
Tor-Arne Grönland, Sollentuna, SE;
Pelle Rangsten, Storvreta, SE;
Kerstin Jonsson, Uppsala, SE;
Johan Bejhed, Uppsala, SE;
Assignee:
Nanospace AB, Uppsala, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 31/12 (2006.01);
U.S. Cl.
CPC ...
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.