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:
Sep. 10, 2002
Filed:
Apr. 27, 2000
Applicant:
Inventor:
Mark F. Gravouia, Lafayette, LA (US);
Assignee:
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25B 1/700 ;
U.S. Cl.
CPC ...
B25B 1/700 ;
Abstract
A power tong gear train which includes a ring gear having a series of teeth and a roller surface. The gear train further includes an idler gear assembly having a series of teeth and a roller element fixed thereto. The idler gear assembly is positioned such that the roller element engages the roller surface and maintains the tangential orientation of the two gears' respective pitch diameters.