Sluice device
US4734004A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 1986 |
| Grant date | Mar 29, 1988 |
| Priority date | — |
| Expiry date | Oct 17, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23B2/001
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
A sluice device for insertion between zones having different environmental conditions, for instance pressure and/or temperature. A drum is rotatably arranged in an opening in a housing and has radially displaceable flaps uniformly distributed along the periphery of the drum. Each flap has a first portion for sealing against the housing, and a second portion of the flap, adjacent to the drum, cooperates with a sealing device. The sluice device is formed as a longitudinal groove which is open against the drum, whereby a longitudinal sealing member is arranged in the groove. The pressure difference between spaces at the two sides of the flap brings the longitudinal sealing member in such a sealing position that the flap, by the pressure difference, is placed in sealing abutment against the inside of the housing regardless of the positive or negative pressure difference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.