Dispenser for granular or powdered product with crenellated dispensing blade
US4280639A · kind A · utility
Inventor
Key dates
| Filing date | Jun 18, 1979 |
| Grant date | Jul 28, 1981 |
| Priority date | — |
| Expiry date | Jun 18, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F11/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A dispenser is provided which is adapted to be used in connection with a hopper for distribution of a granular and/or powdered product, said dispenser having a rotary star-shaped distributor on which is mounted a plurality of crenellated radial blades which upon rotation move between two parallel walls at right angles to the axis of rotation, one wall being an upstream wall and the other a downstream wall, each having at least one cut-out nonaligned with the cut-out in the other, one cut-out being an inlet on the upstream wall and another one an outlet on the downstream wall, the upstream wall having on its inner face at least one stud which is disposed in line with the outlet and the edge of each crenellated radial blade being so crenellated that the recessed surface of the crenellation matches the projecting stud or studs of the upstream wall whereby a constant measured quantity of granular and/or powdered product is dispensed. PAC BACKGROUND
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.