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US Patent: 643,002
Electric Igniter for Explosive Engines
Patentees:
Willis J. Perkins (exact or similar names) - Grand Rapids, Kent County, MI
Carl H. Blomstrom (exact or similar names) - Grand Rapids, Kent County, MI

USPTO Classifications:
123/153, 123/157, 123/164, 123/169R, 123/41.72, 123/556, 123/65V

Tool Categories:
propulsion and energy : internal combustion engines : ignition systems

Assignees:
Willis J. Perkins - Grand Rapids, Kent County, MI

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Dec. 09, 1897
Granted: Feb. 06, 1900

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
Description:
Claim:

In a gas-engine, the combination with a cylinder having an inner and an outer wall with a water-space there between, of a movable electrode, a bearing therefor exposed to the water in said space, and means closing the opening into the jacket through which the said bearing passes

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