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:
Jan. 06, 1987
Filed:
Jun. 26, 1985
John D Knox, Louisville, KY (US);
Vermont American Corporation, Louisville, KY (US);
Abstract
A mining drill having a generally cylindrical, hollow bit holder and a cutting bit attached to the holder. The holder has a diametrically located web and two side wall surfaces projecting from opposite longitudinal sides of the web. A pair of cutting bit locating inclined surfaces are located on the web, each one of the inclined surfaces slanting toward a different one of the two wall surfaces. The cutting bit is sized and configures to be received in the space between the wall surfaces and has a flat bottom surface which rests on the web. The cutting bit is formed with two beveled notches, each notch receiving a different one of the inclined surfaces located on the web for locating the cutting bit in a predetermined relationship to the two side wall surfaces. The cutting bit is attached to the bit holder by solder between the cutting bit and side wall surfaces of the bit holder.