Method of forming a rod for use in the manufacture of cigarette filters
US9247770B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2012 |
| Grant date | Feb 2, 2016 |
| Priority date | — |
| Expiry date | May 14, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24D3/061
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An apparatus and associated method is provided for forming a rod for use in the manufacture of cigarette filter elements. A continuous supply of a filter material is formed into a continuous filter rod by a rod-forming unit. An object insertion unit is configured to insert a plurality of first objects and a plurality of second objects into the continuous filter rod. A rod-dividing unit is configured to subdivide the continuous filter rod, at predetermined intervals along the longitudinal axis thereof, into a plurality of filter rod portions such that each filter rod portion includes at least one first object and at least one second object disposed therein, with the first objects being different from the second objects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.