Patent · US Expired

Sheet shredder

US7198212B2 · kind B2 · utility

2Cited by
3References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 24, 2005
Grant dateApr 3, 2007
Priority date
Expiry dateJun 3, 2025

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB02C2018/0069
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

The sheet shredder includes a cutter block pair equipped with plural cutter discs arranged in parallel with each other at a specified distance, cutting units to cut sheets by rotating the cutter discs of the cutter block pair in the different directions respectively, guide plates to guide cut pieces of sheets cut by the cutter discs in the specified direction, and grooves provided at the sides opposite to the cutter discs of the guide plates to lead out stickum adhered to the cutter discs or the guide plates pursuant to the sheet cutting operation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.