Patent · US Expired

Apparatus for grinding the knives in tobacco cutting machines

US4640059A · kind A · utility

5Cited by

12References

20Claims

0Family size

Assignee

Hauni-Werke Korber & Co. K.G. · DE

Inventors

Werner Komossa · Bornsen, DE
Nikolaus Hausler · Oststeinbek, DE
Uwe Elsner · Dassendorf, DE

Key dates

Filing date	Mar 5, 1985
Grant date	Feb 3, 1987
Priority date	—
Expiry date	Mar 5, 2005

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T83/303
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

A tobacco shredding machine wherein the cutting edges of orbiting shredding knives are sharpened by the undulate annular surface of a grinding wheel which is reciprocated forwardly and backwards in parallelism with the axis of the holder for the knives and is retracted from the circular path of the cutting edges during each return stroke of its support. The speed of forward movement of the support while the grinding wheel sharpens the cutting edges is such that the support covers during each revolution of the holder a distance which equals or is a whole multiple of the width of an undulation on the grinding surface. The axes of the grinding wheel and of the holder for the knives are located in a common plane.

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