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:
Nov. 02, 1976
Filed:
Aug. 14, 1975
Applicant:
Inventor:
Henry W Murdoch, Houston, TX (US);
Assignee:
Reed Tool Company, Houston, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16C / ;
U.S. Cl.
CPC ...
308-82 ;
Abstract
A drill bit having a roller cutter supported by ball bearings and a ball retainer retained in position both axially and rotationally within the ball loading hole by a plug which is mechanically wedged into secured and sealed position within the outer end of the ball loading hole.