Lubrication – Automobile crank and gear case service
Patent
1976-12-28
1977-10-04
Brown, David H.
Lubrication
Automobile crank and gear case service
308187, F01M 106
Patent
active
040519210
ABSTRACT:
A grease plug adapted to fit into a cross hole in communication with a through-greasing passage and to reduce the effective cross-sectional area of the cross hole. The grease plug comprises (1) a generally cylindrical plug portion having at least one grease passage extending generally axially thereof and (2) a generally hook-shaped mounting portion which functions as a snap lock to retain the plug portion in the cross hole. In one embodiment, the mounting portion itself is long enough to bear against the inner surface of the through-greasing passage to prevent the grease plug from being lost therein; in another embodiment, a spacing portion is provided on the bottom of the mounting portion, and the spacing portion bears against the inner surface of the through-greasing passage. The grease passage can have various shapes.
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patent: 3035624 (1962-05-01), Jaworski
patent: 3213745 (1965-10-01), Dwyer
patent: 3494675 (1970-02-01), Hold
patent: 3797755 (1974-03-01), Saisho
Brown David H.
Rexnord Inc.
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