Lock mechanism

Details Lock mechanism Lock mechanism

1989-07-31

1991-03-05

Wolfe, Robert L.

Locks

Portable

70 58, E05B 7300

Patent

active

049968556

ABSTRACT:
A security lock mechanism for use with a hook-up of a roll-off skid. The hook-up includes at least one plate having an opening formed in it for engagement by a coupler of a hoist truck. The lock mechanism comprises a first part shaped to be positioned closely adjacent the plate, and a second part shaped to extend through the opening of the plate and to be connected to the first part. A lock interconnects the first and second parts for securing them together and to the hook-up.

REFERENCES:
patent: 2571349 (1951-10-01), Eckles
patent: 2883850 (1959-04-01), Falek
patent: 3782761 (1974-01-01), Cardin, Sr.
patent: 4376544 (1983-03-01), Sette
patent: 4380160 (1983-04-01), Hoffman
patent: 4409804 (1983-10-01), Sork
patent: 4459832 (1984-07-01), Avree
patent: 4480450 (1984-11-01), Brown
patent: 4538827 (1985-09-01), Plifka
patent: 4620718 (1986-11-01), Mickelson
patent: 4693096 (1987-09-01), Mercer
patent: 4774823 (1988-10-01), Callison

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