Power tong apparatus
AssigneeRangeland Industrial Service Ltd.
InventorMark Charles Taggart
Life of this patent
Estimating the term…
Abstract
A power tong apparatus is provided. The power can include a vertical riser assembly for attaching to a drilling rig, and a swing arm assembly pivotally attached to the vertical riser assembly. The apparatus can include a power tong assembly pivotally attached to the swing arm assembly. The power tong assembly can include a back-up tong to grip a first pipe, and a power tong to grip and rotate a second pipe to make or break a joint between the pipes. The power tong can include a jaw assembly that, when rotated, grips the second pipe. The power tong can include a hydraulic motor to operate a drive chain or belt to rotate the jaw assembly.
Claims29
A power tong apparatus for making and breaking connection joints between sections of pipe on a drilling rig, the apparatus comprising:
- a) a support assembly, further comprising a vertical riser assembly configured for attachment to the drilling rig, and a swing arm assembly operatively attached to the vertical riser assembly wherein the vertical riser and swing arm assemblies are configured such that the swing arm assembly can move up and down relative to the vertical riser assembly, the swing arm assembly further configured to pivot in a substantially horizontal plane relative to the vertical riser assembly;
- b) a power tong assembly operatively attached to the swing arm assembly, the power tong assembly further comprising:
- i) a back-up tong configured to grasp a first section of pipe;
- ii) a power tong configured to grasp and rotate a second section of pipe relative to the first section of pipe to make or break a connection joint between the first and second sections of pipe;
- and
- iii) power tong support means for supporting the power tong above the back-up tong;
- and
- c) control means for controlling the operation of the support assembly and of the power tong assembly.
Dependencies are inferred from the claim text.