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. 05, 1991
Filed:
Apr. 30, 1990
Norbert Sommer, Konigswinter, DE;
Boge AG, Eitorf, DE;
Abstract
A self-pumping hydropneumatic shock absorbing strut for a vehicle with internal level regulation for adjustment toward a standard elevation of the vehicle body capable of operating on a standing vehicle without a separate extenal supply of energy. For this purpose, the working chamber of the shock absorbing strut is connected to a higher pressure reservoir which is mounted external to the working cylinder and has a flow passage to the working cylinder. The flow passage is provided with a check valve which can be released or opened when the elevation of the vehicle is significantly below the standard elevation. During the release or opening of the check valve, the flow passage is open to allow free flow in both directions. A pressure equilibrium between the higher pressure oil reservoir and a pressurized oil chamber normally connected to the working cylinder causes the adjustment toward the standard elevation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile