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. 11, 2005
Filed:
Dec. 03, 2002
Peter Wirth, Schonungen, DE;
Wolfgang Bach, Oberwerrn, DE;
Hassan Asadi, Schweinfurt, DE;
Gerald Fenn, Poppenhausen, DE;
Hans Luksch, Kirchlauter, DE;
Peter Wirth, Schonungen, DE;
Wolfgang Bach, Oberwerrn, DE;
Hassan Asadi, Schweinfurt, DE;
Gerald Fenn, Poppenhausen, DE;
Hans Luksch, Kirchlauter, DE;
ZF Sachs AG, Schweinfurt, DE;
Abstract
Piston-cylinder unit comprising a cylinder in which a work space is filled with a work medium and which is limited by a closure and is sealed by at least one seal. The closure is fixed axially by a positive engagement with the cylinder up to a temperature threshold and the closure can carry out an axial movement for relieving pressure above the temperature threshold. A cutting device cancels the sealing function of the seal during the axial movement of the closure for relieving pressure.