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:
Dec. 27, 2005
Filed:
Nov. 24, 2004
Willy Kussel, Werne, DE;
Willy Kussel, Werne, DE;
Tiefenbach Bergbautechnik GmbH, Essen, DE;
Abstract
A hydraulic pressure sensor for measuring the pressure in a hydraulic pressure chamberA reservoir housingis connected to the pressure chamber, and the interior of the housing is divided by a slideable partitionwhich defines a reservoir chamberwhich is connected to the pressure chamber and a sensor chamberwhich is connected to a sensor elementThe partitionis constructed as a piston and extends for sliding movement along the walls of the reservoir housing while exerting a frictional force. A springsupports the partition relative to the reservoir housing against the pressure in the reservoir chamberThe partitionmay be constructed as a differential piston, and consist of two or more piston sectionswhich extend independently of one another in a sliding and sealing manner, and mutually support one another by an intermediate spring