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:
Apr. 20, 1976
Filed:
May. 01, 1975
Applicant:
Inventor:
Donald F McLean, Princeton, CA;
Assignee:
Bralorne Resources Limited, Calgary, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16C / ;
U.S. Cl.
CPC ...
308-39 ; 175220 ; 308 / ;
Abstract
A drill steel idler guide having an internal sleeve rotatably supported in a base by means of ball bearings fitting in opposed annular grooves in the sleeve and base, said sleeve having a bore through which a drill steel can slidably fit. Means is provided for directing pressure air through the base and into an annular space between the base and the sleeve.