System and method to align refiner plates during...

Details System and method to align refiner plates during... System and method to align refiner plates during...

2007-06-04

2010-11-02

Rosenbaum, Mark (Department: 3725)

Solid material comminution or disintegration

Apparatus

Comminuting elements

C241S261200

Reexamination Certificate

active

07823822

ABSTRACT:
A bushing to assist in positioning a bolt in the bolt apertures of refining plates and disk. The bushing is a cylindrical sleeve that slides over the bolt shaft, before the bolt is inserted into the aperture. The bushing may be short relative to the length of the bolt and the aperture. The bushing fits between the bolt and aperture in the refining plate and/or disk, as the bolt engages the threads of the plate and/or disk. The bolt is centered in the aperture and the centered bolt ensures that the plate segment is properly positioned on the disk as the bolt fastens the segment to the disk.

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patent: 5890665 (1999-04-01), Arasmith et al.
patent: 7472854 (2009-01-01), Bird
patent: 2002/0166912 (2002-11-01), Schneid
patent: 2005/0058375 (2005-03-01), Ma
patent: 1 630 281 (2007-09-01), None

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