US Patent: 5,004,984
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Magnetic Field Pickup Assembly for Diagnositics on Specific Engine
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Patentees:
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Thomas P. Becker (exact or similar names) - Kenosha, WI |
Sohrab S. Rameshk (exact or similar names) - Libertyville, IL |
Matthew M. Crass (exact or similar names) - Kenosha, WI |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Sep. 08, 1989 |
Granted: |
Apr. 02, 1991 |
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Stan Schulz Snap-On Tools Company History
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Description: |
Emrich & Dithmar - patent attorneys
Abstract
An inductive pickup assembly senses the electromagnetic fields of plural ignition elements of an automotive engine, access to which elements is prevented by associated engine housing structure. The pickup assembly includes a frame having a flat platform on which multiple sensors are mounted, each sensor comprising an electromagnetic pickup coil with a magnetizable metal core integral with a magnetizable metal shield plate which covers one end of the coil. The frame has a support member with depending feet having apertures which mate with fasteners on the housing structure to serve as a template for accurately locating the pickup assembly on the housing structure.
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