Knives in cutting machines
US4700720A · kind A · utility
1Cited by
0References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 15, 1985 |
| Grant date | Oct 20, 1987 |
| Priority date | — |
| Expiry date | Jul 15, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26D2001/006
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A knife is provided for a tobacco cutting machine and comprises a plate having one surface bevelled to produce a cutting edge and a plurality of grooves formed at right angles to the cutting edge in the surface of the knife which is not bevelled thereby providing a crenellated cutting edge having alternate leading and trailing cutting edges. The groove sare spaced apart in such manner that the width of each leading cutting edge is small enough so that during cutting the induced strain on the cut strand in the region of each leading cutting edge is greater than 0.4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.