Rope lock with out-of-balance indicator and automatic lockout

Details Rope lock with out-of-balance indicator and automatic lockout Rope lock with out-of-balance indicator and automatic lockout

2007-01-23

2007-01-23

Brittain, James R. (Department: 3677)

Buckles, buttons, clasps, etc.

Cord and rope holders

Pivoted part

C024S11500R

Reexamination Certificate

active

10938286

ABSTRACT:
A rope lock is disclosed, suitably adapted for use in theatrical applications that use counterweight rigging systems. The rope lock includes an indicator to show if the counterweight rigging system is in- or out-of-balance. The rope lock also includes an automatic lockout that prevents the rope lock from being unlocked if there is an out-of-balance condition.

REFERENCES:
patent: 1944603 (1934-01-01), Hecker
patent: 2991526 (1961-07-01), Kuebler
patent: 3327999 (1967-06-01), Mitchell
patent: 4790049 (1988-12-01), Grosh
patent: 5083350 (1992-01-01), Sandreid
patent: 5531297 (1996-07-01), Pipan
patent: 2003/0094333 (2003-05-01), Hossler

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