Apparatus for form-locking torsion prevention in screw connectio

Details Apparatus for form-locking torsion prevention in screw connectio Apparatus for form-locking torsion prevention in screw connectio

1989-10-02

1991-01-01

Wasil, Daniel D.

Induced nuclear reactions: processes, systems, and elements

Miscellaneous

411281, 4119372, 72479, F16B 3900

Patent

active

049816420

ABSTRACT:
An apparatus for form-locking torsion prevention in screw connections includes a bolt with a standard bolt thread and a special nut having a free end and nut threads. A thin-walled sheath is disposed on the free end of the special nut. An integral cross-sectional portion intended for deformation is in the form of a bead supported on the thin-walled sheath. The nut thread extends uninterruptedly through the sheath and the bead. The bolt thread extends through the bead. A thrust pad is pressed axially onto the bead and has a conically narrowing bore formed therein in which the bead is substantially radially plastically deformed and forced inward into the bolt thread.

REFERENCES:
patent: 1603618 (1926-10-01), McClellan
patent: 2487129 (1949-11-01), Hallock
patent: 3295581 (1967-01-01), Norlin et al.
patent: 4326825 (1982-04-01), Volkman et al.
patent: 4759237 (1988-07-01), Fauchet et al.
patent: 4768908 (1988-09-01), Fauchet

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