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. 31, 2001
Filed:
Nov. 12, 1998
Klaus Stolle, Schwabniederhofen, DE;
Hoerbiger Hydraulik GmbH, Schongau, DE;
Abstract
A hydraulic actuating system for movable parts, particularly for hinged covers on vehicles, includes at least one or more working cylinders with a piston equipped with sealing means pressing against the cylinder wall. A control unit is connected with one or all cylinders, and a pressure sensor connected to a control unit. Devices on the cylinder and piston are designed to cause pressure modulation in the cylinder and a common hydraulic circuit. The outgoing signals from the pressure sensor, are changed corresponding to the pressure modulations and are transmitted to the control unit to be used for position control and/or identification of one or all cylinders by the control unit.