Locking mechanism for use with tubing or casing tongs
AssigneeThru Tubing Solutions, Inc.
InventorBrock Watson
Life of this patent
Estimating the term…
Abstract
A locking mechanism is described herein that is attachable to tubing or casing tongs to maintain the engagement of a clamping apparatus of the tubing or casing tongs with a tubular member using only the locking mechanism and the tubing or casing tongs. The tubing or casing tongs can also include a handle for supporting the clamping apparatus that engages the tubular member. The locking mechanism can include a pitman aim rotatably supported by the handle of the tubing or casing tongs. The locking mechanism also includes an adjustable sleeve slidably supported by the pitman aim and a tension aim rotatably supported by the adjustable sleeve to engage with the clamping apparatus.
Claims20
An apparatus, the apparatus comprising:
- a locking mechanism attachable to tubing or casing tongs to maintain the engagement of a clamping apparatus of the tubing or casing tongs with a tubular member using only the locking mechanism and the tubing or casing tongs, the locking mechanism has two areas of relative rotation and comprises:
- a pitman arm rotatably supported by a handle of the tubing or casing tongs;
- an adjustable sleeve slidably supported by the pitman arm;
- and
- a tension arm rotatably supported by the adjustable sleeve to engage with the clamping apparatus.
(canceled)
(canceled)
An apparatus, the apparatus comprising:
- tubing or casing tongs having a handle and a clamping apparatus supported thereby to engage a tubular member;
- and
- a locking mechanism attachable to tubing or casing tongs to maintain the engagement of a clamping apparatus of the tubing or casing tongs with a tubular member using only the locking mechanism and the tubing or casing tongs, the locking mechanism has two areas of relative rotation and comprises:
- a pitman arm rotatably supported by a handle of the tubing or casing tongs;
- an adjustable sleeve slidably supported by the pitman arm;
- and
- a tension arm rotatably supported by the adjustable sleeve to engage with the clamping apparatus.
(canceled)
(canceled)
Dependencies are inferred from the claim text.