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:
Oct. 25, 1988
Filed:
Jan. 22, 1987
Hans-Peter Bauer, Altdorf, DE;
Hans J Bauer, Altdorf, DE;
Ludwig Stadelmann, Altdorf, DE;
Herbert Wolf, Nuremberg, DE;
Fritz Bauer & Sohne OHG, Altdorf, DE;
Abstract
An adjustable-length gas spring has a compressed gas-filled housing in which a piston with a piston rod is sealingly guided. At one end of the housing is provided a valve with a valve pin for connecting or separating two housing chambers, the valve pin being movable into the housing against the force exerted thereon by the gas pressure with the valve in the open position. The pin is movable against such force when the valve is in the closed position. There is also a permanent release mechanism for securing the valve pin when the valve is in the open position. In order to permit a particularly simple operation of the gas spring, the permanent release mechanism is formed by a bi-stable locking mechanism constructed in the manner of a mechanical flip-flop and which is coupled to the valve pin, being operated by the insertion thereof into the housing.