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US4976166A Expired / Lapsed US ⏱️ 0.0 years remaining

Electronic foot pedal

Assignee: Williams Controls Industries Inc
•
Filing: 1988-12-28
•
Granted: 1990-12-11
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Expires: 2008-12-28
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Abstract

Abstract An electronic foot pedal for diesel engine control systems. The pedal provides a voltage signal to a diesel engine electronic fuel control system in response to the drivers demand for engine power. Disclosed is an accelerator pedal assembly containing a potentiometer and pedal interfacing components which provide a voltage signal proportional to pedal position. The pedal assembly is an integral unit which is cab mounted and connected to the engine fuel control via an appropriate wiring harness. An idle stop pin provides a positive pedal idle position. When the idle stop pin is removed, the bias spring load forcing the pedal toward idle is relieved allowing easy assembly of the device.

Inventors

  • 👤 Jeffrey L. Davis
  • 👤 Jay D. Byler

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 17:22
CPC Classifications
G; G05; G05G; G05G1/00; G05G1/30; F; F02; F02D; F02D41/00; F02D41/24; F02D41/26; F02D41/28; F02B; F02B3/00; F02B3/06; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20528; Y10T74/20576; Y10T74/20582; Y10T74/2063; Y10T74/20888

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 261 words
A foot pedal assembly for generating an electrical signal which is representative of the angular position of a pedal comprising: a base having a track; a pedal having upper and lower sides, said pedal pivotally mounted above said base and adapted to be pivoted toward and away from said track; a lever arm having upper and lower ends, the upper end pivotably mounted on the lower side of said pedal, said lever arm including a bearing means at the lower end of the lever arm, said bearing means engaging said track and being forced to move between a depressed and an idle position along said track upon respective pivotal movement of the pedal toward and away from said track; a potentiometer carried on one of said lever arm and pedal which is responsive to the relative pivoting movement therebetween for generating an electrical signal representative of the angular position of said pedal; spring biasing means biasing said lever arm toward the idle position, said spring biasing means having a pre-loaded condition in said idle position, and a stop member mounted on said pedal for engaging the lever arm and stopping the spring biasing movement of the lever arm at said idle position, said stop member being removably mounted to said pedal whereby the lever arm and spring biasing means can be mounted to said pedal with the stop member removed and with the spring biasing means in an unloaded condition to be thereafter pivoted past the idle position and toward said depressed position for mounting the stop member to the pedal.
Claim 2
Dependent Claim 261 words
A foot pedal assembly for generating an electrical signal which is representative of the angular position of a pedal comprising: a base having a track; a pedal having upper and lower sides, said pedal pivotally mounted above said base and adapted to be pivoted toward and away from said track; a lever arm having upper and lower ends, the upper end pivotably mounted on the lower side of said pedal, said lever arm including a bearing means at the lower end of the lever arm, said bearing means engaging said track and being forced to move between a depressed and an idle position along said track upon respective pivotal movement of the pedal toward and away from said track; a potentiometer carried on one of said lever arm and pedal which is responsive to the relative pivoting movement therebetween for generating an electrical signal representative of the angular position of said pedal; spring biasing means biasing said lever arm toward the idle position, said spring biasing means having a pre-loaded condition in said idle position, and a stop member mounted on said pedal for engaging the lever arm and stopping the spring biasing movement of the lever arm at said idle position, said stop member being removably mounted to said pedal whereby the lever arm and spring biasing means can be mounted to said pedal with the stop member removed and with the spring biasing means in an unloaded condition to be thereafter pivoted past the idle position and toward said depressed position for mounting the stop member to the pedal.
Claim 3
Dependent Claim 23 words
A foot pedal assembly as defined in claim 1 wherein said stop member is a pin mounted between ears provided on said pedal.

References Cited (Backward Citations)

US2192714A Cited
US2762891A Cited
US3210712A Cited
US4087776A Cited
US4528590A Cited
US4695819A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-12-10 1994-06-11 1994-12-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-12-10 1998-06-11 1998-12-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-12-10 2002-06-11 2002-12-11 $7700.00 Window Closed / Lapsed

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