Solid material comminution or disintegration – Apparatus – With automatic control
Reexamination Certificate
2009-01-16
2010-11-02
Miller, Bena (Department: 3725)
Solid material comminution or disintegration
Apparatus
With automatic control
C241S037500, C241S100000, C241S236000
Reexamination Certificate
active
07823816
ABSTRACT:
Disclosed herein is a shredder having a throat for receiving at least one article to be shredded therethrough and a shredder mechanism received in a shredder housing which is driven to shred the at least one article fed therein. At least one light-emitting diode (LED) acts as a sensor by emitting and detecting radiation when operated in a forward-biased and reverse-biased direction. The LED(s) may be used to detect the presence of the at least one article in the throat or an amount of shredded particles in a bin. The LED(s) communicate with a controller to operate the shredder mechanism. The controller may also calibrate an intensity of the radiation to or within a predetermined amount above a minimum level in order to reduce wear and run-on conditions.
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Fellowes Inc.
Miller Bena
Pillsbury Winthrop Shaw & Pittman LLP
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