Extended counterbore nut

Details Extended counterbore nut Extended counterbore nut

1989-02-22

1990-12-25

Wilson, Neill R.

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

Torque responsive nut or bolt driving connection

Frangible connection

411432, 411533, F16B 3100, F16B 3304

Patent

active

049798570

ABSTRACT:
An extended counterbore nut has a nut body and an attached collar extending from counterbore in the nut body. The bore of the collar is about equal in diameter to the major diameter of the thread of the bolt used with the nut so that the collar aligns the bolt and nut for threading. At a predetrmined axial load, the collar releases from the nut body and enters the counterbore, shortening the nut.

REFERENCES:
patent: 2872961 (1959-02-01), Mills et al.
patent: 3135154 (1964-06-01), Zenzic
patent: 3411397 (1968-11-01), Birmingham
patent: 3482864 (1969-12-01), Bynum
patent: 3602976 (1971-09-01), Grube
patent: 3728933 (1973-04-01), Grube
patent: 3890876 (1975-06-01), Dahl
patent: 4362449 (1982-12-01), Hlinsky
patent: 4427326 (1984-01-01), Hobson et al.
patent: 4431353 (1984-02-01), Capuano
patent: 4518295 (1985-05-01), Matuschek
patent: 4729703 (1988-03-01), Sato
patent: 4887948 (1989-12-01), Calmettes

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