Power clamp

Details Power clamp Power clamp

1991-01-09

1992-06-02

Hartman, J. J.

Work holders

With fluid means

Cylinder-piston means in series with additional positioning...

269 27, 269 31, 269 78, B23Q 308

Patent

active

051180880

ABSTRACT:
Several embodiments of a power clamp are disclosed which enable one arm or a pair of arms to be actuated for linear or rotational movement over a selected range of motion, depending on the manner in which the arm or arms are connected to the power clamp. Several embodiments, in addition to permitting actuation of various arms through various ranges of motion, further enable the arm or arms to be rotated about a transverse axis to a desired angular position, thereby further enhancing the adaptability of the power clamp device.

REFERENCES:
patent: 437589 (1890-09-01), Gibson
patent: 1667616 (1928-04-01), Wright et al.
patent: 3273878 (1966-09-01), Blatt
patent: 3371923 (1968-03-01), Blatt
patent: 3545050 (1970-12-01), Blatt et al.
patent: 3618931 (1971-11-01), Blatt
patent: 3702185 (1972-11-01), Blatt
patent: 4240620 (1980-12-01), Tunkers
patent: 4396183 (1983-08-01), Lymburner
patent: 4445676 (1984-05-01), Tunkers
patent: 4494739 (1985-01-01), Valentine
patent: 4496138 (1985-01-01), Blatt

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