Solid material comminution or disintegration – Apparatus – With automatic control
Reexamination Certificate
2011-06-07
2011-06-07
Miller, Bena (Department: 3725)
Solid material comminution or disintegration
Apparatus
With automatic control
C241S037500, C241S100000, C241S236000
Reexamination Certificate
active
07954737
ABSTRACT:
A shredder includes a housing having a throat for receiving at least one article to be shredded, and a shredder mechanism received in the housing and including an electrically powered motor and cutter elements. The shredder also includes a detector that is configured to detect a thickness of the at least one article being received by the throat, and a controller that is configured to operate the motor to drive the cutter elements to shred the at least one article and to set a flutter threshold higher than the predetermined maximum thickness threshold, if the detected thickness is less than a predetermined maximum thickness threshold. The controller is also configured to thereafter continuously detect the thickness of the at least one article being inserted into a throat of the shredder; and to perform a predetermined operation responsive to the thickness detector detecting that the thickness of the at least one article is greater than the flutter threshold.
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Jensen Michael Dale
Matlin Tai Hoon K.
Fellowes Inc.
Miller Bena
Pillsbury Winthrop Shaw & Pittman LLP
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