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:
Feb. 01, 2000
Filed:
Feb. 13, 1998
Applicant:
Inventors:
Heinz Voggenreiter, Munchen, DE;
Albert Seidel, Hohenkirchen-Siegertsbrunn, DE;
Assignee:
DaimlerChrysler AG, Munchen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
137 15 ; 251368 ;
Abstract
Cryogenic valve with at least one pair of sealing elements, preferably one with a seat and a tappet, whose seat surfaces are in sealing contact with one another in the shutoff position. At least one sealing element of the pair is formed of a linearly superelastic shape memory alloy, which is stabilized by plastic cold working in the martensitic textural state, i.e., no longer displays a shape memory effect.