The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 28, 2014
Filed:
Feb. 03, 2011
Tai Hoon Kim Matlin, Round Lake Beach, IL (US);
Eric Gach, Mount Prospect, IL (US);
Michael Dale Jensen, Wood Dale, IL (US);
Tai Hoon Kim Matlin, Round Lake Beach, IL (US);
Eric Gach, Mount Prospect, IL (US);
Michael Dale Jensen, Wood Dale, IL (US);
Fellowes, Inc., Itasca, IL (US);
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.