Cutters – for shaping – Rotary cutting tool – Including holder having seat for inserted tool
Reexamination Certificate
2007-05-14
2008-08-12
Fridie, Willmon (Department: 3724)
Cutters, for shaping
Rotary cutting tool
Including holder having seat for inserted tool
C407S029130, C407S043000, C407S051000, C407S056000
Reexamination Certificate
active
07410330
ABSTRACT:
The cutter assembly contains an axle having a number of parallel, equally spaced troughs along the axial direction, and a number of circular blade discs, each having a center hole threaded through by the axle. Each blade disc has a number of teeth along the circumference of the center hole corresponding and matching to the troughs of the axle. The blade disc has fewer blades than the teeth and the blade discs therefore can be mounted on the axle in different orientations so that their blades are spirally arranged. The axle of the cutter assembly has a fixed end and the blade discs can be sequentially installed to or removed from the other free end. The bearing at the free end has a smaller diameter so that the blade discs can be removed or installed directly passing through the bearing without removing it first.
REFERENCES:
patent: 2592382 (1952-04-01), Blais
patent: 4522538 (1985-06-01), Lindsay
patent: 6012372 (2000-01-01), Laster et al.
patent: 6899493 (2005-05-01), Russell
patent: 7153068 (2006-12-01), Satran et al.
Fridie Willmon
Lei Leong C.
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