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:
Jun. 08, 1993
Filed:
Mar. 05, 1992
Peter Bosebeck, Ennepetal, DE;
Ludger Gesenhues, Witten, DE;
August Bilstein GmbH & Co. KG, Ennepetal, DE;
Abstract
A sensor for and method of continuously detecting the instantaneous position of a piston in the cylinder of a dashpot with a protective cover, for motor vehicles. The sensor consists of a cylindrical coil (9) accommodated on or in the cover (3). The coil constitutes in conjunction with the magnetizable cylinder (1) a variable inductive resistor (12). The inductive resistor is connected in series with an ohmic resistor (13). The series is subjected to a pulse voltage. The voltage drop over either resistor is rectified and measured and employed as a reference for the position of the piston (7) in the cylinder (1). The method in accordance with the invention supplies signals proportional to the stroke traveled by the piston, position signals for level control, and, by way of differentiation, signals representing motion that can be used to control the amount of vibration suppression.