Apparatus and method for forming a smoke filter
US11291242B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2019 |
| Grant date | Apr 5, 2022 |
| Priority date | — |
| Expiry date | Jul 30, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24D3/10
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A system, apparatus and method for forming a smoke filter including a forming nozzle through which a fibrous bundle material passes. The forming nozzle includes a converging passage, at least one first internal cavity in fluid connection with a first working fluid source, and a plurality of first holes fluidly connecting the at least one first internal cavity with a working surface of the forming nozzle. The plurality of first holes are further positioned and directed such that in passing through the plurality of first holes, the first working fluid conveys the fibrous bundle material through the forming nozzle in a transport direction. A guide pin is disposed along a central axis of the converging passage, the guide pin including an elongated body which tapers in the transport direction. A bobbin disposed downstream of the forming nozzle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.