Brushing – scrubbing – and general cleaning
Patent
1976-03-11
1977-08-23
Frazier, Roy D.
Brushing, scrubbing, and general cleaning
10 86A, F16B 3912, F16B 2928
Patent
active
040433692
ABSTRACT:
A lock nut, which is relatively free running as it is screwed onto a male threaded member, provides a two-way locking action as it is tightened to abutment with a confronting load bearing surface, with the result that a breakaway torque that is a high percentage of the applied locking torque must be applied to loosen the lock nut. One or both ends of the lock nut have an annular dish shape commencing at the relatively high corners at the juncture of adjacent pairs of wrenching side faces and recessing into the body toward the threaded bore therethrough. The corner high points are thus relatively thinned for biting and spreading into the confronting surface to provide one locking function, and the corner high points also act as fulcrum points to obtain early torque transfer from the outer edges to the body of the lock nut over a large number of threads for controlled bending of the body to bear radially into locking engagement against the male threaded member.
REFERENCES:
patent: 181716 (1876-08-01), Pickles
patent: 845250 (1907-02-01), Newman
patent: 1064699 (1913-06-01), Berns
patent: 1409934 (1922-03-01), Dunham
patent: 1767653 (1930-06-01), Davis
patent: 2215930 (1940-09-01), Mahla
patent: 2399107 (1946-04-01), Eckenbeck et al.
patent: 3177914 (1965-04-01), MacLean et al.
patent: 3823526 (1974-07-01), Rose
patent: 3854372 (1974-12-01), Gutshall
patent: 3865007 (1975-02-01), Stanback
Frazier Roy D.
Holko Thomas J.
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