Work holders – With fluid means – Cylinder-piston means directly moves jaw
Reexamination Certificate
2007-01-02
2007-01-02
Wilson, Lee D. (Department: 3723)
Work holders
With fluid means
Cylinder-piston means directly moves jaw
C269S020000
Reexamination Certificate
active
09316876
ABSTRACT:
A flexible hydraulic vise that is actuated hydraulically along the entire length of the jaw travel. The vise includes master jaws disposed in a complementary shaped tracks, connected to pistons by pins. Top jaws with spring loaded ball detents are secured to the master jaws by a dove-tail notch connection. Internal passageways allow pressure to be delivered to either side of pairs of the pistons disposed in the bores, allowing the clamping force to be exerted inwardly or outwardly.
REFERENCES:
patent: 491222 (1893-02-01), Pellet
patent: 2517941 (1950-08-01), Stubbs
patent: 2706922 (1955-04-01), Allen
patent: 2947275 (1960-08-01), Edmonds
patent: 4251065 (1981-02-01), McDougal
patent: 5806841 (1998-09-01), Hebener
patent: 6079704 (2000-06-01), Buck
American Workholding, Inc.
Frost Brown Todd LLC
Wilson Lee D.
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