Solid material comminution or disintegration – Apparatus – Rotating comminuting surface
Reexamination Certificate
2005-08-16
2005-08-16
Banks, Derris H. (Department: 3725)
Solid material comminution or disintegration
Apparatus
Rotating comminuting surface
C241S018000, C241S028000, C241S281000, C241SDIG014
Reexamination Certificate
active
06929202
ABSTRACT:
A method of feeding a wood batch into a pressure grinder, the method comprising first collecting the wood batch to be fed into the grinder into a separate batch chamber above a side feeding chamber, from which the wood batch is lowered vertically by means of a separate supporting plate to the side feeding chamber. Thereafter, the wood batch is transferred from the side feeding chamber into the feeding chamber. An arrangement for feeding a wood batch into a pressure grinder comprises a batch chamber above a side feeding chamber and in which the wood batch to be fed into the pressure grinder is formed before it is lowered into the side feeding chamber.
REFERENCES:
patent: 2410628 (1946-11-01), Brunette
patent: 4274600 (1981-06-01), Haikkala
patent: 4664323 (1987-05-01), Ahonen et al.
patent: 57979 (1979-08-01), None
patent: 69653 (1985-07-01), None
Haikkala Pekka
Harakkamäki Kari
Setälä Simo
Alston & Bird LLP
Metso Paper Inc.
Pahng Jason Y
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