Woodworking – Rotary cutter – Having slotted bit seat
Reexamination Certificate
2007-08-10
2010-06-15
Self, Shelley (Department: 3725)
Woodworking
Rotary cutter
Having slotted bit seat
C407S041000, C083S698410, C241S091000
Reexamination Certificate
active
07735531
ABSTRACT:
A planing head, cylindrical body for a planing head and a method of manufacture thereof are provided. The planing head includes a cylindrical body having an axis of rotation, an outer surface around the axis of rotation, and opposite first and second end faces. A plurality of blade assemblies is arranged along the outer surface. A plurality of grooves is provided in the outer surface and each groove is configured to receive a respective one of the plurality of blade assemblies. A hydraulic pressure system for supplying a hydraulic pressure to each of the blade assemblies is provided. The hydraulic pressure system includes a plurality of transverse channels for receiving a pressurised hydraulic fluid and a plurality of oblique channels hydraulically linking the plurality of transverse channels. Each transverse channel extends at least partially through the cylindrical body.
REFERENCES:
patent: 4594928 (1986-06-01), Thomas et al.
patent: 4709607 (1987-12-01), Buhayar
patent: 4922977 (1990-05-01), Colton et al.
patent: 5904193 (1999-05-01), Kellner
patent: 6279444 (2001-08-01), Kellner et al.
patent: 6666246 (2003-11-01), Gilbert
Gilbert Sylvain
Paré Daniel
Les Produits Gilbert Inc.
Merchant & Gould P.C.
Self Shelley
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