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. 02, 1996
Filed:
Dec. 23, 1994
Randall W Ojanen, Bristol, TN (US);
Rogers Tool Works, Inc., Evans, GA (US);
Abstract
A cutting tool assembly including a cutting bit having a head and a cylindrical shank portion of substantially constant diameter depending from the head as well as a bit holder including a cylindrical bore for receiving the cylindrical shank portion of the cutting bit. The shank portion includes an annular recessed groove, the cylindrical bore includes a notch corresponding to and disposed opposite the annular recessed groove. The cutting tool assembly further includes a retainer sleeve disposed between the shank portion of the cutting bit and the bore of the bit holder and which closely conforms about the shank portion while allowing the shank portion to rotate within the bore. The retainer sleeve includes at least one inwardly prestressed projection closely following the contour of a portion of the recessed groove and at least one outwardly prestressed finger projecting into the notch in a direction opposite the inwardly prestressed projection to retain the cutting bit within the bore of the bit holder and to prevent axial removal of the cutting bit when in use while allowing rotational movement of the cutting bit within the bore.