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:
Nov. 01, 2005
Filed:
Feb. 06, 2004
Michael Hönig, Ennepetal, DE;
Günter Poetsch, Sersheim, DE;
Hendrik Kloss, Hamburg, DE;
Stefan Mages, Hürth, DE;
Michael Hönig, Ennepetal, DE;
Günter Poetsch, Sersheim, DE;
Hendrik Kloss, Hamburg, DE;
Stefan Mages, Hürth, DE;
ThyssenKrupp Bilstein GmbH, Ennepetal, DE;
Abstract
A blow-off valve for a hydraulic dashpot comprising a fluid charged cylinder () and a piston () that travels back and forth therein on the end of a piston rod. The piston partitions the cylinder into two compartments (&) and is provided with breaches () and shock-absorbing valves. The piston rod () or an extension () thereof is hollow and accommodates operating components (). The object is a valve that can be accommodated along with the hydraulic lines that serve it outside the piston rod or an extension thereof. The outer surface of the piston rod is accordingly provided with at least one axial inwardly undulating groove () at least as long as the piston, including its fastenings and operating components, is high. Alternatively, the bore that extends through the piston rod or its extension and its fastenings and operating components is provided with a similar radially outward groove that can be closed off at the compression end by a spring-loaded valve.