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:
Jan. 26, 1999
Filed:
Sep. 25, 1996
Stefan Volpel, Koblenz, DE;
Stabilus GmbH, Koblenz, DE;
Abstract
Fluid strut which consists of a cylinder, the interior of which contains a charge under pressure, and a piston rod connected to a piston located in this interior. On the end of the cylinder where the piston rod exits, there are a gasket and a guide for the piston rod, while a valve device which acts when there is a thermal overload on the fluid strut opens the interior to the atmosphere, whereby the valve device has at least one passage channel which can connect the atmosphere to the interior, whereby the fluid strut is connected by means of connecting parts to a base body and to a pivoting body which can move with respect to the base body, whereby in a first series connection between the base body by means of a first connecting part and the fluid strut, or a second series connection between the pivoting body by means of a second connecting part and the fluid strut, there is an element which melts in the event of a fire, and releases at least one end of the fluid strut from one of the series connections, as a result of which the fluid strut assumes a first emergency operating extended position, from which, in the event of the further addition of heat, the fluid strut moves into a second emergency operating extended position, in which the gasket to the piston rod is bridged.