Drying and gas or vapor contact with solids – Apparatus – Rotary drums or receptacles
Reexamination Certificate
2008-04-08
2008-04-08
Gravini, S. (Department: 3749)
Drying and gas or vapor contact with solids
Apparatus
Rotary drums or receptacles
Reexamination Certificate
active
11359101
ABSTRACT:
A cleaning apparatus for a material dryer may include an air source, a pulse nozzle selectively in fluid communication with the air source and located within a section of the solids outlet assembly, and a controller for controlling an air flow from the air source periodically to the pulse nozzle, where the nozzle is actuated by the periodic air flow to provide a corresponding periodic burst of air to the section of the solids outlet assembly, and the burst of air is of sufficient force to dislodge material accumulated within the section.
REFERENCES:
patent: 3897836 (1975-08-01), Hall et al.
patent: 4061485 (1977-12-01), Rimmel
patent: 5256289 (1993-10-01), Cope et al.
patent: 5410795 (1995-05-01), Derton et al.
patent: 6013158 (2000-01-01), Wootten
patent: 6368512 (2002-04-01), Wirz et al.
Bingham Richard
Clarke Tony
Gravini S.
M-I L.L.C.
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