Hydraulic pipe tong apparatus
Patent
·
OSTI ID:6731181
A hydraulic pipe-gripping apparatus carried by a support frame includes a hydraulic piston radially supported in fixed relation within the frame through a piston rod. A movable combination blind cylinder and pipe jaw is fitted around the piston for radial movement toward and away from gripping relation with pipe. The piston and cylinder define a fluid pressure chamber connected to pressure means for introducing fluid under pressure into the chamber to move the cylinder and pipe jaw into gripping engagement with pipe. A retraction arrangement is provided to move the cylinder and pipe jaw away from the pipe. (6 claims)
- Assignee:
- Byron Jackson Inc.
- Patent Number(s):
- US 3796418
- OSTI ID:
- 6731181
- Country of Publication:
- United States
- Language:
- English
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