Tube filter production device and tube filter production method
US11992040B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2020 |
| Grant date | May 28, 2024 |
| Priority date | — |
| Expiry date | May 23, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31D5/0086
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
According to embodiments of the present invention, there is provided a tube filter production device including a tube filter exterior forming case into which one or more filter tows are introduced and from which a tubular rod formed from the one or more filter tows is discharged, a tube filter forming bar extending in an inner region of the tube filter exterior forming case in order to form a hollow of the tubular rod, and a steam chamber having at least one steam nozzle in communication with the inner region of the tube filter exterior forming case and configured to supply steam to the one or more filter tows through the steam nozzle, wherein the tube filter forming bar has a duct extending in a longitudinal direction of the tube filter forming bar and a flavoring nozzle formed in a downstream end region of the tube filter forming bar to deliver a flavoring liquid or a moisturizing liquid supplied through the duct to the hollow of the tubular rod.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.