The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 06, 2004
Filed:
Mar. 20, 2002
Tommie L. Rogers, Lafayette, LA (US);
Other;
Abstract
Apparatus for positioning a power tong at a desired location with respect to the distance above the rig floor, and with respect to the center of the rig floor. A pedestal is secured to the structure of the rig. An upright member is mounted on the upper end of the pedestal, with a bearing disposed between the upright member and the pedestal, the bearing permitting the upright member to rotate around a vertical axis when moved by a powered ring gear assembly. A telescoping boom is rotatably mounted on the upright member, and one end thereof extends over the central part of the rig floor. Power tongs attached to the boom may thereby be positioned at desired positions with respect to the rig floor. Controls mounted on the power tongs and/or on the upright member permit control of the rotation of the boom, the upright member, and the power tong.