Apparatus for transferring filter rods containing pulverulent, granular and analogous ingredients
US6371125B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 27, 2000 |
| Grant date | Apr 16, 2002 |
| Priority date | — |
| Expiry date | Mar 27, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24C5/323
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Apparatus for transporting rod-shaped tobacco smoke filters which contain and/or carry particles of charcoal and/or other solid particulate tobacco smoke filtering and/or flavoring material. A sender directs a series of successive filters lengthwise into a pneumatic conduit wherein the filters advance toward a receiving station. A section of the conduit has an arcuate shape and advances successive filters from a lower level to a higher level. The underside of the section has an elongated arcuate opening which is overlapped by a cover in such a way that any solid particles which became separated from the filters can be expelled into a neighboring chamber due to fluid pressure in the section as well as under the action of gravity and/or centrifugal force. Such particles are evacuated by way of an outlet at the lower end of the chamber, either by manually operated valves which control the admission of particles from the chamber into a compartment and from the compartment, or by automatically operated valves which open at close at predetermined intervals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.