Solid material comminution or disintegration – Apparatus – Cooperating comminuting surfaces
Reexamination Certificate
2006-01-10
2006-01-10
Banks, Derris H. (Department: 3725)
Solid material comminution or disintegration
Apparatus
Cooperating comminuting surfaces
C241S291000, C241S293000, C241S295000
Reexamination Certificate
active
06983903
ABSTRACT:
The present application discloses a multi-functional shredder that is capable of effectively destroying both paper documents and rigid/semi-rigid objects, such as CDs or DVDs. This multifunctional shredder comprises a housing; a drive system including at least one motor; and at least two shafts rotatably mounted within the housing and coupled to the drive system to enable the drive system to counter-drive the shafts in respective opposing rotational cutting directions. Each of the shafts includes positive cutter elements and negative cutter elements, configured to cooperate to shred articles as the shafts are rotationally counter-driven by the drive system in the respective rotational cutting directions thereof. The positive cutting elements on each shaft have positive cutting parts angled in the respective rotational cutting directions of the shafts, and the negative cutting elements on each shaft have negative cutting parts angled opposite the respective rotational cutting directions of the shafts.
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Banks Derris H.
Fellowes Inc.
Pahng Jason Y.
Pillsbury Winthrop Shaw & Pittman LLP
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