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:
Nov. 17, 2009
Filed:
Aug. 30, 2007
Applicant:
Joseph K. Frear, Bedford, PA (US);
Inventor:
Joseph K. Frear, Bedford, PA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21C 35/197 (2006.01);
U.S. Cl.
CPC ...
Abstract
Cutting tool assemblies and retention sleeves. The assemblies may include a support member that has a sleeve-receiving hole therethrough and a cutting tool that has an elongated shank. Various configurations of sleeve segments are disclosed for non-rotatably supporting the elongated shank of the cutting bit in the support member. Such sleeve segment embodiments may be provided with a plurality of axially extending notches to establish segments of various degrees of interference fit between the sleeve and the support member when seated in the sleeve-receiving hole of the support member.