Compound wrench apparatus

Tools – Wrench – screwdriver – or driver therefor – Machine

Patent

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Details

811801, 81 5738, 81 55, 81 13, 81 581, B25B 1358

Patent

active

057751838

ABSTRACT:
A compound wrench apparatus includes a bolt shaft which includes threads. A bolt head is connected to the bolt shaft at a proximal end of the shaft. A first wrench assembly is engaged by the threads and is proximal to the proximal end of the shaft. A second wrench assembly is engaged by the threads of the shaft and is distal to the first wrench assembly. The first wrench assembly includes a threaded lock nut received on the shaft. A retention bracket is received on the shaft and is located between the lock nut and the implement-receiver. A first wrench member is provided, and a first pivot is connected between the retention bracket and the first wrench member. A brace is connected between the first wrench member and the retention bracket. A first bracket portion of the retention bracket includes a slot which receives the shaft and is oriented perpendicularly to the longitudinal axis. The second wrench assembly includes a threaded carriage received on the shaft. A second wrench member is provided, and a second pivot is connected between the carriage and the second wrench member.

REFERENCES:
patent: D306127 (1990-02-01), Graham et al.
patent: D325864 (1992-05-01), Diego
patent: D344223 (1994-02-01), Kubicek
patent: 1050746 (1913-01-01), Morgan
patent: 1509258 (1924-09-01), Reiser
patent: 1734270 (1929-11-01), Olson
patent: 4027560 (1977-06-01), Packer
patent: 4327611 (1982-05-01), Catanese et al.
patent: 4385533 (1983-05-01), Collins
patent: 4406185 (1983-09-01), Junkers
patent: 4530262 (1985-07-01), Pownall
patent: 5421225 (1995-06-01), Chen
patent: 5528964 (1996-06-01), Smith, Jr.

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