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. 31, 1976
Filed:
Jun. 19, 1975
Harry Ream Mitchell, Bloomfield Hills, MI (US);
Neil Arthur Schilke, Rochester, MI (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A throttle motion indicator device for an internal combustion engine of a vehicle having an induction system including a movable throttle for controlling flow through an induction passage and, an operator actuated accelerator pedal linkage, including a throttle rod, operatively connected to the throttle for controlling movement thereof, the indicator device including a spring positioned roller carried by the throttle rod in position to engage a detent means suitably positioned in the path of the roller as carried by the throttle rod to indicate to the operator a throttle position for improved fuel economy. With this device, the driver depresses the accelerator pedal until he feels a slight stiffening in the throttle movements which alerts him that he has reached a predetermined limit in acceleration rate to obtain good fuel economy. In an alternate embodiment, the detent means carries two detents to provide a signal to the operator of a range of throttle positions within an optimum acceleration range.