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:
May. 30, 1989
Filed:
Nov. 25, 1987
Applicant:
Inventor:
George P Schivley, Richardson, TX (US);
Assignee:
Ingersoll-Rand Company, Woodcliff Lake, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66C / ; E21B / ;
U.S. Cl.
CPC ...
294 90 ;
Abstract
A device to facilitate the handling of drill pipe which obviates the necessity of climbing the drill rig tower to attach or detach the lifting device. The device comprises a collar which is temporarily attached to the drill pipe and a basket device having a lifting bail.