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:
Mar. 21, 1995
Filed:
May. 12, 1993
Robert G Everts, Chandler, AZ (US);
Kouichi Miyamoto, Tokyo, JP;
Ryobi America Corporation, Easley, SC (US);
Abstract
The present invention includes a rotatable cutting head assembly (12), such as for a planer or a jointer, which planes a work surface on a workpiece (22). The cutting head assembly (12) comprises a rotatable elongate support block (30), a pair of blades (32), and a pair of elongate retainers (34). Each blade (32) has a straight elongate cutting edge (50,51) which extends parallel to and is spaced radially from the longitudinal axis (36) of the support block (30). Each retainer (34) is attachable to the support block (30) to clamp a respective blade (32) therebetween. Retainers (34), blades (32) and support block (30) have cooperating alignment ribs (64) and elongate slots (52). The slots (52) extend parallel to the longitudinal axis of the support block. The cooperating alignment ribs and elongate slots maintain cutting edges (50,51) at equal radial distances from the longitudinal axis (36) while permitting the blades (32) to be longitudinally adjustable relative to the support block (30) to enable a user to offset any longitudinally aligned nicks formed on the cutting edges (50,51) during planing so that the cutting edges (50,51) create a smooth planar surface which is free of ridges on workpiece (22).