Double locking device

Joints and connections – With adjunctive protector – broken parts retainer – repair,... – Position or guide means

Patent

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Details

403317, 403320, F16D 100

Patent

active

042747546

ABSTRACT:
In a coupling of members subject to rotational uncoupling forces, a lock key that unites the members and holds them from relative rotational movement with a fastener for the lock key to not only secure the lock key to one or the other members, but by its size insure proper locking with the lock key of the members.

REFERENCES:
patent: 2821419 (1958-01-01), Walton
patent: 3736010 (1973-05-01), Larkin
patent: 3989394 (1976-11-01), Ellis
patent: 4042306 (1977-08-01), Murray
patent: 4092080 (1978-05-01), Bradley, Jr.

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