Shredder with thickness detector
US8870106B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2011 |
| Grant date | Oct 28, 2014 |
| Priority date | — |
| Expiry date | Jun 16, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C2018/168
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.