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:
Aug. 01, 1989
Filed:
Dec. 03, 1987
Manfred Pfalzgraf, Frankfurt am Main, DE;
Heinz Ungermann, Linsengericht, DE;
VDO Adolf Schindling AG, Frankfurt am Main, DE;
Abstract
In an electrical desired-value transmitter, particularly for an electronic gas pedal system, a return spring (5) as well as a force elastic jump spring (15) arranged parallel to it are provided. The desired-value transmitter has an electric path converter which gives off an electrical desired-value signal. In order to verify the proper operation of the return spring, a contact spring (9) of a first safety switch contact (10) acts on it in such a manner that the force of the return spring is transmitted to the contact spring. In the event that the return spring is broken, the safety switch contact assumes a position which is characteristic of this and gives off a corresponding signal which can reduce the output of the engine. The electric path converter may be a potentiometer.