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. 02, 1997
Filed:
Apr. 24, 1996
Helmut Maiwald, Alfdorf, DE;
Klaus Bohmler, Schwabisch Gmund, DE;
TRW Repa GmbH, Alfdorf, DE;
Abstract
An inertial sensor for activating a vehicular passenger restraining system has a sensor body which is slidably guided translationally in a housing and preloaded in a rest position by a return spring. The sensor body includes an actuating pin for actuating a contact pair which is located in the current circuit of an electric igniter. The preloading force of the return spring is overcome by an acceleration as low as approx. 2 g. Following an initial stroke of approx. 2 mm the movement of the sensor body is counteracted by an additional spring, the spring force of which is several times that of the return spring. The subsequent actuating stroke amounts to only approx. 0.5 mm. With good reliability in preventing malactivation a fast response is achieved.