Double nut

Details Double nut Double nut

1986-10-27

1988-03-08

Gall, LLoyd A.

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

Torque responsive nut or bolt driving connection

Frangible connection

411237, 411238, 411433, F16B 3100

Patent

active

047297034

ABSTRACT:
A double nut comprising a locking nut body having a threaded axial bore, the locking nut body being formed with a recess defined by an annular internal surface and arranged in communication with the axial bore, a tightening nut body having a threaded axial bore coaxial with and corresponding in diameter to the axial bore of the locking nut body, the tightening nut body being formed with an annular axial projection insertable into the recess and having an external surface, at least one of the internal and external surfaces being conical with a diameter decreasing gradually in a direction of insertion of the axial projection into the recess, one of the recess and the axial projection being eccentric with both of the axial bores, and a connecting web adapted to break at a predetermined circumferential shearing force and extending radially to connect the external surface to the internal surface.

REFERENCES:
patent: 897168 (1908-08-01), Smith
patent: 1372525 (1921-03-01), McCabe
patent: 2285080 (1942-06-01), Berge

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