Drying and gas or vapor contact with solids – Process – With fluid current conveying or suspension of treated material
Reexamination Certificate
2011-07-19
2011-07-19
Gravini, Steve (Department: 3743)
Drying and gas or vapor contact with solids
Process
With fluid current conveying or suspension of treated material
C034S596000, C034S136000, C034S389000, C034S520000, C034S090000, C432S110000, C210S741000, C099S337000, C099S470000, C134S065000, C366S007000, C118S019000
Reexamination Certificate
active
07980002
ABSTRACT:
The invention relates to a rotary drum in which the hygienic status of pourable solids separated from liquid cattle manure is modified by aerobic heating in such a manner that said solids can be reused as bedding in cattle sheds. The object of the invention is to obtain a high loading factor amounting to 60-70% filling of the drum which is located horizontally for installation in an insulated container. In accordance with the invention, the loaded solid is kept in a chamber and is only transferred to the drum when there is no solid surrounding the chamber. The crucial element is a flap of the chamber which only opens and closes in this area. If there is any solid resting on the outside of the flap then opening of the flap is prevented.
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Edwards Angell Palmer & & Dodge LLP
Gravini Steve
Röhren-und Pumpenwerk Bauer Gesellschaft mbH
Wofsy Scott D.
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