Feeding device for cigarette filters and similar rods
US4580939A · kind A · utility
7Cited by
8References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 8, 1983 |
| Grant date | Apr 8, 1986 |
| Priority date | — |
| Expiry date | Dec 8, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24D3/0258
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A filter feed onto a fluted drum has conveyors which convey a stack-like stream of filters into a small reservoir adjacent to the drum. As they enter the reservoir, the filters are deflected upwards by a deflector plate so that the thrust by the conveyors does not produce a direct pressure of filters onto the drum. Instead, the filters are fed onto the drum by gravity after passing over the plate. A pivoted sensor plate over the reservoir controls the speed of the conveyors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.