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:
Oct. 23, 1984
Filed:
Aug. 29, 1982
Lawrence E Wells, Anaheim, CA (US);
Boris Kamenster, Fountain Valley, CA (US);
Preston R Fox, Fountain Valley, CA (US);
Jerry A Gill, Spring, TX (US);
Varco International, Inc., Orange, CA (US);
Abstract
A well pipe spinner includes two body parts carrying rollers and mounted by two pivotal connections for swinging movement between a closed position in which the rollers grip and drive a well pipe and an open position releasing the pipe. A structure extends between and interconnects the two pivotal connections in a relation permitting relative adjustment of their pivotal axes toward and away from one another for gripping different sizes of pipe. The tool is supported by a structure which is adapted to be suspended from a line or other element and which suspends the two body parts and pivotal connections at essentially the locations of the two pivotal axes.