Cigarette conveying drums
US4438774A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 1981 |
| Grant date | Mar 27, 1984 |
| Priority date | — |
| Expiry date | Dec 8, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24C5/327
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Apparatus for conveying cigarettes by means of one or more fluted drums has a frame including spaced front and back walls defining between them a suction manifold; a fluted drum in front of the frame; a tubular drum-carrying member which extends through an opening in the front wall of the frame, engages and seals in or around an aperture in the rear wall of the frame, and has a flange by which it is secured to the front wall of the frame, the drum being rotatable around the tubular member; and a drive shaft which extends axially through the tubular member, is secured to the front end of the drum, is supported by bearings carried by the tubular member, and carries at its rear end behind the rear wall of the frame a gear or other means by which it is driven; suction being transmitted to ports in the flutes of the drum from the manifold via a passage contained within the thickness of the wall of the tubular member in the region where it extends through the front wall of the frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.