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US Patent: 3,420,585
Oil Hole Cover
Patentee:
Hans Jensen (exact or similar names) - Wheeling, Cook & Lake Counties, IL

USPTO Classifications:
220/300, 220/375, 220/86.1, 384/189

Tool Categories:
industrial tools : tool lubricators : oil cups

Assignees:
Gits Bros. Mfg. Co. - Chicago, Cook County, IL

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Apr. 06, 1966
Granted: Jan. 07, 1969

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Gits Bros. Mfg. Co.
Description:
Abstract:

An oil hole cover having an externally threaded body member with a friction plug inset in the threaded area adapted to be threaded into an oil hole in a housing, the body member defining an oil passageway and closable by a cap which has a pin projecting through a closed end thereof, the pin carrying a plunger adapted to close the oil passageway, and a spring acting between the closed end of the cap and the plunger to urge the plunger and a sealing gasket carried thereby against the open end of the body member.

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