Dispensing – With discharge assistant – Movable or conveyer-type trap chamber
Reexamination Certificate
2005-12-06
2005-12-06
Derakshani, Philippe (Department: 3754)
Dispensing
With discharge assistant
Movable or conveyer-type trap chamber
C222S636000, C141S248000
Reexamination Certificate
active
06971554
ABSTRACT:
This device for the controlled distribution of pulverulent products includes a feed container (1) for said product having an outlet aperture sealed by a rotor (6) provided with a plurality of transfer cavities (7, 8), each of which comprises an inlet aperture and an evacuation aperture, the paths of said inlet apertures successively passing opposite said outlet aperture in order to be filled with said product and said evacuation apertures passing successively opposite a distribution aperture (13, 14) connected to device (12) to evacuate said pulverulent product from said transfer cavities (7, 8), for emptying therein, of sealing surfaces (5a,5b) of said inlet and evacuation apertures, disposed along said respective paths and means (M,15) to drive said rotor (6). Said rotor comprises device to link said cavities to said rotational axis, arranged to give said cavities a degree of freedom in a substantially perpendicular direction to said sealing surfaces (5a,5b).
REFERENCES:
patent: 2314031 (1943-03-01), Colburn
patent: 4528848 (1985-07-01), Hafner
patent: 5076501 (1991-12-01), Tschumi
patent: 5094403 (1992-03-01), Tschumi
Derakshani Philippe
Drinker Biddle & Reath LLP
EXA SA
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