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. 03, 2009
Filed:
Dec. 20, 2005
Wolfgang Beyerlein, Mitteleschenbach, DE;
Markus Köpfer, Mönchsroth, DE;
Wolfgang Beyerlein, Mitteleschenbach, DE;
Markus Köpfer, Mönchsroth, DE;
Alfmeier Prazision AG Baugruppen und Systemlosungen, Treuchtlingen, DE;
Abstract
A valve is provided with a valve housing encompassing a pressure chamber and possessing at least two valve ports which open into the pressure chamber, whereby, in the pressure chamber at least one axially slidable valve stem exists, which controls at least one of the valve ports and which the at least one valve stem is movable between a closed position and an open position. The valve further encompasses at least one wire or band shaped SMA element, the element having an SMA, as well as possessing a resetting element for the movement of the valve stems into the closure direction. The valve seat carries on its first end a port closing closure disk, whereby its second end is axially guided within the pressure chamber on a base plate which the plate extends itself transversely to the valve stems.