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:
Aug. 19, 1980
Filed:
May. 17, 1978
William O Druschel, Granite Springs, NY (US);
Other;
Abstract
A cutting tool includes a shank with one end adapted to be secured to a rotary chuck. Spaced inwardly from an opposite end is a transversely extending radially offset aperture extending through the shank for receiving a cutting tool. A threaded aperture extends into the shank axially from the opposite end for receiving a set screw for securing the cutting tool within the offset aperture. A cup-shaped pilot bushing is provided and fits over the opposite end of the shank and includes means interengaging the cutting tool and an aperture aligned with the threaded aperture of the shank so that the bushing can be interlockably secured to the shank. In some embodiments, the leading edges of the shank and the pilot bushings are chamfered and knurled to define a ream for use of the cutting tool with out-of-round and/or undersized pilot holes. A cutting tool so formed can be employed as a universal drill for enlarging pilot holes within an infinitely adjustable range of sizes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile