Work holders – Operator supported – Handle manipulation for jaw actuation
Patent
1994-08-12
1996-03-19
Watson, Robert C.
Work holders
Operator supported
Handle manipulation for jaw actuation
269204, 269147, 269228, 81375, 81378, 81487, B25B 124
Patent
active
054998000
ABSTRACT:
A bar clamp having a locking pliers, toggle action clamping mechanism is herein disclosed. The locking pliers includes a fixed handle, a movable handle, and a toggling linkage arrangement therebetween for toggling the locking pliers from a first open position to a second clamped position. An extension bar is connected at one end to the fixed handle. The bar clamp includes an adjustable outer clamping jaw slidably connected to the extension bar. The outer clamping jaw includes disengagable locking mechanism for disengagably locking the outer clamping jaw in any given position along the length of the extension bar. The bar clamp also includes an inner clamping jaw connected to the toggling linkage arrangement such that when the locking pliers are toggled into the clamped position the inner clamping jaw is caused to move toward the adjustable outer clamping jaw.
REFERENCES:
patent: 1187109 (1916-06-01), Stevernagel
patent: 2312947 (1943-03-01), Westman
patent: 2533817 (1950-12-01), Koskinen
patent: 2561682 (1951-07-01), Barnett
patent: 3210070 (1965-10-01), Lagana
patent: 4339113 (1982-07-01), Vosper
patent: 4850254 (1989-07-01), Burney
patent: 5050466 (1991-09-01), Cameron
patent: 5096170 (1992-03-01), Albin
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