Michael J Jensen

US Patent:

7954737, Jun 7, 2011

Filed:

Oct 4, 2007

Appl. No.:

11/867260

Inventors:

Tai Hoon K. Matlin - Round Lake Beach IL, US
Michael Dale Jensen - Wood Dale IL, US

Assignee:

Fellowes, Inc. - Itasca IL

International Classification:

B02C 4/32
B02C 7/14
B02C 9/04
B02C 11/08

US Classification:

241 36, 241 375, 241100, 241236

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.

US Patent:

8028942, Oct 4, 2011

Filed:

Aug 1, 2008

Appl. No.:

12/184631

Inventors:

Tai Hoon Kim Matlin - Round Lake Beach IL, US
Michael D. Jensen - Wood Dale IL, US
Jakub M. Krynski - Buffalo Grove IL, US

Assignee:

Fellowes, Inc. - Itasca IL

International Classification:

B02C 25/00

US Classification:

241100, 241 36, 2411013, 241236

Abstract:

An assembly has a bin level detection system having at least one sensor positioned to receive radiation reflected off any material deposited in a bin and to determine an intensity of the reflected radiation. The intensity corresponds to an amount or level of shredded material deposited in the bin. The system may detect radiation from one or more emitters, or, alternatively, detect ambient light entering the bin via a window. A level indicator system may also be provided to indicate the amount of material deposited in the bin, including if the bin is full. The assembly may comprise a shredder and a shredder housing.

US Patent:

8113451, Feb 14, 2012

Filed:

Jun 16, 2010

Appl. No.:

12/816903

Inventors:

Tai Hoon K. Matlin - Round Lake Beach IL, US
Michael Dale Jensen - Wood Dale IL, US

Assignee:

Fellowes, Inc. - Itasca IL

International Classification:

B02C 4/32
B02C 7/14

US Classification:

241 36, 241100, 241236

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.

US Patent:

8336792, Dec 25, 2012

Filed:

Sep 22, 2011

Appl. No.:

13/240498

Inventors:

Tai Hoon K. Matlin - Round Lake Beach IL, US
Michael Dale Jensen - Round Lake IL, US
Jakub M. Krynski - Buffalo Grove IL, US

Assignee:

Fellowes, Inc. - Itasca IL

International Classification:

B02C 25/00

US Classification:

241 30, 241100, 2411013, 241236

Abstract:

An assembly has a bin level detection system having at least one sensor positioned to receive radiation reflected off any material deposited in a bin and to determine an intensity of the reflected radiation. The intensity corresponds to an amount or level of shredded material deposited in the bin. The system may detect radiation from one or more emitters, or, alternatively, detect ambient light entering the bin via a window. A level indicator system may also be provided to indicate the amount of material deposited in the bin, including if the bin is full. The assembly may comprise a shredder and a shredder housing.

US Patent:

8424787, Apr 23, 2013

Filed:

Jul 19, 2011

Appl. No.:

13/185910

Inventors:

Tai Hoon K. Matlin - Round Lake Beach IL, US
Michael Dale Jensen - Wood Dale IL, US

Assignee:

Fellowes, Inc. - Itasca IL

International Classification:

B02C 4/32
B02C 7/14

US Classification:

241 36, 241 375, 241100, 241236

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.

US Patent:

8464767, Jun 18, 2013

Filed:

Jan 27, 2012

Appl. No.:

13/360198

Inventors:

Tai Hoon K. Matlin - Round Lake Beach IL, US
Michael Dale Jensen - Wood Dale IL, US

Assignee:

Fellowes, Inc. - Itasca IL

International Classification:

B02C 4/32
B02C 7/14

US Classification:

144 36, 241 375, 241100, 241236

Abstract:

A shredder includes a housing having a throat for receiving at least one article to be shredded, and a shredder mechanism having a 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.

US Patent:

8500049, Aug 6, 2013

Filed:

Jul 19, 2011

Appl. No.:

13/186018

Inventors:

Tai Hoon K. Matlin - Round Lake Beach IL, US
Michael Dale Jensen - Wood Dale IL, US

Assignee:

Fellowes, Inc. - Itasca IL

International Classification:

B02C 4/32
B02C 7/14
B02C 9/04

US Classification:

241 36, 241 375, 241100, 241236

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.

US Patent:

20110186663, Aug 4, 2011

Filed:

Feb 3, 2011

Appl. No.:

13/020553

Inventors:

Tai Hoon K. Matlin - Round Lake Beach IL, US
Eric Gach - Mount Prospect IL, US
Michael Dale Jensen - Wood Dale IL, US

Assignee:

Fellowes Inc. - Itasca IL

International Classification:

B02C 23/04
B02C 18/24

US Classification:

241 36, 241100

Abstract:

A shredder having a feed passage configured to receive material to be shredded by the shredder. The shredder also has a thickness detector configured to measure the thickness of the material being fed through the feed passage. The thickness detector includes a contact member movable from a limiting position engaging one wall of the feed passage, away from the wall, against a biasing force acting on the contact member. A sensor is configured to measure varying displacement of the contact member from the limiting position. A controller is configured to zero the thickness detector at times during operation of the shredder when no material is being fed through the feed passage so that the thickness of the material being fed through the feed passage is measured with respect to a zero position of the thickness detector.