US Patent: 4,373,384 - Diesel Engine Timing Apparatus


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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.