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. 07, 1999
Filed:
Aug. 12, 1998
Applicant:
Inventor:
Thomas Schroder, Berlin, DE;
Assignee:
Pierburg AG, Neuss, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D / ;
U.S. Cl.
CPC ...
123337 ; 123396 ; 123399 ; 251313 ; 251336 ;
Abstract
A spring assembly in a throttle valve connection for control of combustion air to an internal combustion engine, in which a rotor is movable in opposite directions to control flow of combustion air. The spring assembly has a coil spring with first and second legs at respective opposite ends engaging housing and rotor parts. The housing and rotor parts are provided with respective oblique surfaces engaging one of the legs of the spring when the spring is relaxed to resist relative rotation of the housing and rotor.