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US Patent: 4,373,384
Diesel Engine Timing Apparatus
Patentees:
Gene E. Olson (exact or similar names) - Kenosha, WI
Jerome A. Thompson (exact or similar names) - Milford, MI
Donald D. Grover (exact or similar names) - Kenosha, WI
Christopher B. Stout (exact or similar names) - Kenosha, WI
Thomas P. Becker (exact or similar names) - Kenosha, WI
Glenn A. Kaufman (exact or similar names) - Kenosha, WI

USPTO Classifications:
73/119A

Tool Categories:

Assignees:
Snap-On Tools Corp. - Kenosha, WI

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: Jul. 23, 1981
Granted: Feb. 15, 1983

Patent Pictures:
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Snap-On Tools Company History
Description:
Dithmar, Stotland, Stratman & Levy - patent attorneys

Abstract

The apparatus comprises a luminosity probe to provide an electrical signal in response to the combustion event in a diesel engine and also comprises a probe to provide another electrical signal indicative of top dead center. Both electrical signals are processed and applied to a circuit which generates an output pulse having a duration corresponding to the time between the start of the electrical signals. A meter displays the angle represented by the duration of such pulse. Circuitry is provided to compensate for offset.

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