Apparatus for cutting filter plugs from a moving filter rod stream
US4090424A · kind A · utility
16Cited by
5References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 29, 1977 |
| Grant date | May 23, 1978 |
| Priority date | — |
| Expiry date | Mar 29, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/4792
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The apparatus employs two pairs of cutting discs which are diametrically spaced apart on a rotating drum to sever two filter plugs at a time from a travelling rod of filter material. The plugs are cut in uniform size, for example, in sizes between 5 millimeters and 14 millimeters and can be subsequently spaced apart so as to receive charcoal or other particulate filter material in the intermediate spaces. The drum rotates in synchronism with a recessed ledger through which the respective pairs of cutting discs pass to sever the travelling rod of filter material. Sharpening means are provided to maintain the cutting discs sharp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.