RESTRICTIVE THROAT MECHANISM FOR PAPER SHREDDERS
First Claim
1. A shredder comprising:
- a housing having a throat for receiving at least one article to be shredded;
a shredder mechanism received in the housing and including an electrically powered motor and cutter elements, the shredder mechanism enabling the at least one article to be shredded to be fed into the cutter elements and the motor being operable to drive the cutter elements so that the cutter elements shred the at least one article fed therein;
a cam mechanism provided in the throat;
the cam mechanism being biased to a disengaged position and movable to an engaged position responsive to insertion into the throat of the at least one article above a predetermined maximum thickness threshold;
wherein the cam mechanism is configured such that in the engaged position the cam mechanism engages the at least one article to prevent further insertion thereof into the throat, and in the disengaged position the cam mechanism is disengaged from the at least one article to permit further insertion thereof into the throat.
2 Assignments
0 Petitions
Accused Products
Abstract
A shredder includes a housing having a throat for receiving articles be shredded and a shredder mechanism. The shredder mechanism includes a motor and cutter elements, and enables the articles to be shredded to be fed into the cutter elements. The motor drives the cutter elements to shred the articles. A cam mechanism is provided in the throat and is movable from a disengaged position to an engaged position responsive to insertion into the throat of articles above a predetermined maximum thickness threshold. In the engaged position, the cam mechanism engages the articles to prevent further insertion thereof into the throat, and in the disengaged position the cam mechanism is disengaged from the articles to permit further insertion thereof into the throat. The cam mechanism may be movable between a closed position and an open position. In the closed position, the cam mechanism is configured to block the throat.
130 Citations
30 Claims
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1. A shredder comprising:
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a housing having a throat for receiving at least one article to be shredded; a shredder mechanism received in the housing and including an electrically powered motor and cutter elements, the shredder mechanism enabling the at least one article to be shredded to be fed into the cutter elements and the motor being operable to drive the cutter elements so that the cutter elements shred the at least one article fed therein; a cam mechanism provided in the throat; the cam mechanism being biased to a disengaged position and movable to an engaged position responsive to insertion into the throat of the at least one article above a predetermined maximum thickness threshold; wherein the cam mechanism is configured such that in the engaged position the cam mechanism engages the at least one article to prevent further insertion thereof into the throat, and in the disengaged position the cam mechanism is disengaged from the at least one article to permit further insertion thereof into the throat. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 19, 20, 21, 22)
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17. The shredder of 1, wherein the cam mechanism comprises a cam member configured to be pivotable around a pivot point.
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18. The shredder of 1, wherein the cam mechanism blocks the throat to prevent further insertion of articles into the throat when the cam mechanism is in the engaged position.
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23. A shredder comprising:
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a housing having a throat for receiving at least one article to be shredded; a shredder mechanism received in the housing and including an electrically powered motor and cutter elements, the shredder mechanism enabling the at least one article to be shredded to be fed into the cutter elements and the motor being operable to drive the cutter elements so that the cutter elements shred the articles fed therein; a cam mechanism provided in the throat; the cam mechanism being biased to an open position and movable to a closed position responsive to insertion into the throat of the at least one article above a predetermined maximum thickness threshold; wherein the cam mechanism is configured such that in the open position the cam mechanism permits further insertion of the at least one article into the throat and in the closed position the cam mechanism blocks the throat to prevent further insertion of the at least one article into the throat. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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Specification