Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Washer structure – Including means for retaining washer to fastener
Patent
1997-08-29
1999-11-02
Saether, Flemming
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Washer structure
Including means for retaining washer to fastener
411526, F16B 4300
Patent
active
059758210
ABSTRACT:
A threaded fastener has a nut, a lower neck disposed on a bottom of the nut, a cage recess formed on the lower neck, the cage recess having a flat face and a bevel face, a cushion having a through hole, and the lower neck inserted in the through hole. The cushion encloses the cage recess.
REFERENCES:
patent: 1037010 (1912-08-01), Irons
patent: 1988595 (1935-01-01), Hiss
patent: 3643987 (1972-02-01), DuPont
patent: 5112176 (1992-05-01), McCauley
patent: 5308285 (1994-05-01), Malen
patent: 5618145 (1997-04-01), Kuo
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