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. 10, 2001
Filed:
Aug. 06, 1999
Klaus Stolle, Schwabniederhofen, DE;
Hoerbiger Hydraulik GmbH, Schongau, DE;
Abstract
A hydraulic operating apparatus, especially for a vehicle covering, includes a reversible pump (,) which, via hydraulic lines (,), one of which is in all cases provided with an unblockable check valve (,), is connected with the working chambers of at least one double-acting piston-cylinder arrangement (,). In order to make possible a very flexible supply and control of mutually independently operated piston-cylinder arrangements with a minimum of constructive and control-technical effort, additional hydraulic lines (,) branch off from both hydraulic lines (,) of the reversible pump, into which the check valves are placed, which additional hydraulic lines lead into a common hydraulic line (,) to at least one additional piston cylinder arrangement (,).