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:
May. 22, 2001
Filed:
Jun. 22, 1999
Applicant:
Inventors:
Walter Böhm, Feucht, DE;
Frank Weisser, Pegnitz, DE;
Assignee:
Suspa Compart Aktiengesellschaft, Altdorf, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16F 5/00 ; F16F 9/04 ;
U.S. Cl.
CPC ...
F16F 5/00 ; F16F 9/04 ;
Abstract
An adjustable length gas spring comprises a housing, in which a piston mounted on a piston rod is guided for displacement. The piston divides the housing into two partial volumes. Furthermore, a valve is provided for the interconnection of the partial volumes. A device is provided for closing the valve, by means of which the valve is closed when the partial volume which the piston rod does not pass through reaches a given minimum length.