Clamping means for trough of pipe handling apparatus

Details Clamping means for trough of pipe handling apparatus Clamping means for trough of pipe handling apparatus

1980-09-30

1983-05-10

Paperner, Leslie J.

Work holders

Relatively movable jaws

Three coacting work grippers

269238, 414 22, 414745, E21B 1914

Patent

active

043825915

ABSTRACT:
Clamps are provided for clamping a length of pipe to the trough of a pipe handling apparatus. The clamps comprise two arms pivotally coupled to the trough on opposite sides thereof. The arms are movable to open and closed positions by two piston rods pivotally coupled to the arms and which are actuated by two cylinders pivotally coupled to the trough on opposite sides.

REFERENCES:
patent: 3058533 (1962-10-01), Collins
patent: 3071405 (1963-01-01), Koehler
patent: 3734210 (1973-05-01), Wilderman
patent: 3741517 (1973-06-01), Pogonowski
patent: 3860122 (1975-01-01), Cernosek
patent: 3919902 (1975-11-01), Johnson
patent: 3983949 (1976-10-01), Pozniko
patent: 4264267 (1981-04-01), Luben

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