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US3581839A Expired / Lapsed US ⏱️ 0.0 years remaining

Exhaust pollution control circuit

Assignee: Bendix Corp
•
Filing: 1969-01-10
•
Granted: 1971-06-01
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Expires: 1989-01-10
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Abstract

Abstract The invention relates to a circuit for actuating an output load when an input signal above a predetermined level is present. In a particular embodiment the output load is a coil which actuates a linkage to prevent the accelerator pedal of a vehicle from fully closing when it is released by the driver while the vehicle is traveling above a predetermined speed. The input signal is a varying voltage, the frequency of which is representative of the vehicle speed. By so controlling the closing of the accelerator pedal, the expulsion of unburned fumes and gas is minimized. An acceleration responsive circuit is also included. This circuit is actuated when an acceleration above a predetermined rate is reached to prevent an attempt at accelerating the vehicle at a rate beyond its capabilities.

Inventors

  • 👤 Ralph Wolf Carp

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 02:53
CPC Classifications
F; F02; F02D; F02D41/00; F02D41/02; F02D41/04; F02D41/045

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 40 words
The system of claim 1 wherein said reference signal is obtained from a normally conductive transistor, and said system includes means for amplifying said DC voltage and for rendering said transistor nonconductive when said acceleration rate exceeds a predetermined rate.

References Cited (Backward Citations)

US2957463A Cited
FR1206502A Cited
US3060602A Cited
DE1184395B Cited
US3351811A Cited
US3381771A Cited
US3463130A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-05-31 1974-11-30 1975-06-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-05-31 1978-11-30 1979-06-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-05-31 1982-11-30 1983-06-01 $7700.00 Window Closed / Lapsed

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