Method and apparatus for producing micro bead bearing filter rod
US11134713B2 · kind B2 · utility
1Cited by
6References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 3, 2018 |
| Grant date | Oct 5, 2021 |
| Priority date | — |
| Expiry date | Jan 8, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24D3/063
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A system and method for manufacturing a filter includes a filamentary material delivery apparatus, a support structure for supporting a continuous stream of filamentary material, and a particle distribution apparatus. The particle distribution apparatus includes an apertured distribution belt positioned above the support structure and in communication with an outlet of a particle storing hopper. The belt defines a plurality of spaced openings through which particles are distributed onto the continuous stream of filamentary material to form a particle-bearing stream of filamentary material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.