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:
Sep. 23, 2003
Filed:
Dec. 28, 2000
James Rauch, Grass Lake, MI (US);
Mark Semeyn, Jr., Ypsilanti, MI (US);
Ross Dykstra Pursifull, Dearborn, MI (US);
Scott Allan Lehtonen, Dearborn, MI (US);
Visteon Global Technologies, Inc., Dearborn, MI (US);
Abstract
An electronic throttle control system having a housing and cover member with a throttle valve, gear mechanism, motor, and failsafe or default mechanism. A spring member positioned between the housing and sector gear member which is attached to the throttle valve shaft, biases the throttle valve plate member toward the closed position. A spring-biased plunger member biases the throttle plate member from its closed position to a default or “limp-home” position. In order to reduce contact between the spring member of the default mechanism and the plunger member, the spring member can have an hourglass shape and/or the outer surface of the plunger member can be minimized.