Solid material comminution or disintegration – Apparatus – Helical pusher inside tube moves material toward perforated...
Reexamination Certificate
2011-01-18
2011-10-18
Miller, Bena (Department: 3725)
Solid material comminution or disintegration
Apparatus
Helical pusher inside tube moves material toward perforated...
C241S082700, C029S428000
Reexamination Certificate
active
08038086
ABSTRACT:
Self-correcting plate guards for installation over an orifice plate of a grinding machine are disclosed. Each plate guard has studs that fit into apertures of an orifice plate. The studs and apertures are sized so that the correct guard must be used with a particular orifice plate. Furthermore, the mounting ring that holds the orifice plate in place on the grinding machine cannot be tightened for use of the grinding machine without the plate guard being installed.
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Albrecht Christopher E.
Lesar Nick J.
Boyle Fredrickson, s.c.
Miller Bena
Weiler and Company, Inc.
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