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:
Feb. 04, 1997
Filed:
Jun. 13, 1995
Applicant:
Inventor:
Alonzo Wireman, Sherman, TX (US);
Assignee:
Reedrill Corporation, Denison, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C / ;
U.S. Cl.
CPC ...
384 57 ; 384 31 ;
Abstract
A self-aligning linear bearing for use with the feed column of a drilling rig includes a bearing block having a pivot shaft extending therefrom. A pivot block connected to a mounting plate of a drill head rotatably connects with the pivot shaft, enabling the bearing to rotate such that the bearing surfaces of the bearing maintain substantially full contact with the feed column despite forces moving the drill head and mounting plate away from or toward the feed column.