Pneumatic transporting method and apparatus
US6454495B1 · kind B1 · utility
1Cited by
9References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 11, 2000 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Aug 11, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G51/02
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Rod-shaped articles of the tobacco processing industry are advanced lengthwise in a conduit by a first air flow. Blasts of compressed air are admitted into the conduit behind successive articles to promote their advancement in a larger-diameter arcuate section of the conduit, particularly from a lower level to a higher level. The admission of successive blasts of compressed air is carried out by an open-and-shut valve which receives signals from an article detector located downstream of the valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.