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:
Dec. 04, 1984
Filed:
Apr. 29, 1983
Applicant:
Inventors:
Joe K Heilhecker, Houston, TX (US);
James D Rodgers, Cypress, TX (US);
Steven C Gaare, Humble, TX (US);
Assignee:
Foster Cathead Company, Wichita Falls, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25B / ;
U.S. Cl.
CPC ...
81 572 ;
Abstract
A kelly spinner rotatable in opposite directions in which means are provided for preventing engagement of the jaws of the spinner with the pipe when rotated in one direction by a stop which may be removed by the operator to permit the jaws to engage when rotated in said direction.