Solid material comminution or disintegration – Apparatus – Cooperating comminuting surfaces
Reexamination Certificate
2011-04-26
2011-04-26
Miller, Bena (Department: 3725)
Solid material comminution or disintegration
Apparatus
Cooperating comminuting surfaces
C241S295000
Reexamination Certificate
active
07931224
ABSTRACT:
A round cutter-blade of a paper shredder includes a body having a surface, a periphery, and an opening formed therethrough; and at least one triangular shaped knife-edge that is integrally formed with the surface of the body and is turned over the periphery of the body. The cutter-blade can cut broken paper into short fragments, thus raising the secure requirement greatly and reducing the cost due to a reduction of thickness of the round cutter-blade.
REFERENCES:
patent: 3668738 (1972-06-01), Vertegaal
patent: 3991944 (1976-11-01), Baikoff
patent: 5897066 (1999-04-01), Bacon et al.
patent: 7401747 (2008-07-01), Bai
patent: 2005/0109866 (2005-05-01), Hunag
patent: 2005/0109867 (2005-05-01), Hunag
patent: 2006/0102763 (2006-05-01), Bai
patent: 2007/0063084 (2007-03-01), New
Aurora Office Equipment Co., Ltd.
Miller Bena
O'Connor Cozen
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