Method and apparatus for manufacturing cigarette rods free of metal
US5016653A · kind A · utility
3Cited by
5References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 25, 1986 |
| Grant date | May 21, 1991 |
| Priority date | — |
| Expiry date | Aug 25, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24C5/3412
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Cigarette rods having fragments of metal therein can be efficiently and effectively separated from cigarette rods free of detectable metal particulates. A moving continuous rod exiting a rod-forming unit passes through a ring-like metal sensing device. The continuous rod is subdivided into individual rods of the desired length. A reject valve operates to isolate any rods determined to contain metal fragments. The process is performed to provide high quality control in the manufacture of cigarettes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.