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. 16, 2002
Filed:
Jun. 15, 2000
Andreas Wild, Unterensingen, DE;
Roland Meyer, Roth, DE;
Hydraulik-Ring GmbH, Limbach-Oberfrohna, DE;
Abstract
An actuating device for a differential lock has a piston housing having a pressure chamber. An actuator piston is arranged in the pressure chamber of the piston housing. A hydraulic medium tank is provided. A pump conveys a hydraulic medium from the tank to one end of the actuator piston, wherein the actuator piston can move in the pressure chamber and acts on the lock when loaded by the hydraulic medium. One or more conduits connect the hydraulic medium tank and the pressure chamber to one another. The conduit has a temperature-dependent throttle element for adjusting a flow cross-section for the hydraulic medium based on the temperature of the hydraulic medium.