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:
Jun. 02, 2009
Filed:
Jun. 26, 2006
Applicants:
Holger Knaust, Kümmersbruck, DE;
Michael Schmidbauer, Hahnbach, DE;
Inventors:
Holger Knaust, Kümmersbruck, DE;
Michael Schmidbauer, Hahnbach, DE;
Assignee:
SUSPA Holding GmbH, Altdorf, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16F 9/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
An adjustable length gas spring comprises a casing and a piston which is disposed for displacement in the casing and joined to a piston rod. An externally operable adjusting valve is formed in the piston. Further, the piston is provided with a traction valve, which, upon application of tractive force from outside, cancels any blockage of the piston.