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:
Jul. 04, 1989
Filed:
Nov. 18, 1987
Applicant:
Inventors:
Assignee:
Fritz Bauer + Sohne oHG, Altdorf, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16M / ;
U.S. Cl.
CPC ...
2481621 ;
Abstract
A gas spring adjustable in length has a housing and a piston rod brought out at one end. Disposed at the opposite end is a valve by means of which movements of longitudinal adjustment of the piston rod relative to a housing filled with a pressure medium are released or stopped. These gas springs are principally used for the vertical adjustment of chairs or tables. In order to make said vertical adjustment more comfortable, a damper valve is disposed in the valve effecting in different manner in each instance the throttling on the insertion of the piston rod into the housing or on the extraction of said piston rod out of the housing.