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.

Date of Patent:
Jan. 05, 1988

Filed:

Dec. 18, 1985
Applicant:
Inventor:

Denis P Crane, Olton, GB;

Assignee:

Ofrex Group Holdings Plc, West Drayton, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B02C / ; B02C / ;
U.S. Cl.
CPC ...
241236 ; 2412921 ;
Abstract

A document shredding machine comprises cutting mechanism comprising two shafts, each mounted for rotation about a respective parallel axis, and cutting discs mounted at spaced intervals on each shaft, the two sets of cuttings discs intermeshing and the shafts being rotated in opposite directions so as to provide a downwardly-accessible nip into which documentary material (such as paper) is fed. Engagement between the circumferential edges of adjacent discs subjects the documentary material to a plurality of longitudinal cuts, and the discs are provided with transverse cutting edges by which the material is subjected to a transverse severing.


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Crane, Denis. (1988). Document shredding machines (U.S. Patent No. 4717085). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4717085

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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