Apparatus for attaching hammers to a hammer mill

Details Apparatus for attaching hammers to a hammer mill Apparatus for attaching hammers to a hammer mill

2008-09-02

2008-09-02

Rosenbaum, Mark (Department: 3725)

Solid material comminution or disintegration

Apparatus

Rotary striking member with circumferential or tangential flow

C241S194000, C241S195000

Reexamination Certificate

active

11531100

ABSTRACT:
An apparatus for mounting hammers to a hammer mill having at least one hammer provided for attachment to a hammer mill, the at least one hammer having an opening disposed in one end thereof corresponding to a pivot axis, the opening being of a first diameter. A sleeve having a central opening therein is operatively attached to the hammer mill, the sleeve being disposed in the opening in the one end of the at least one hammer. The sleeve has a first cylindrical outer surface with a second diameter, the second diameter being only slightly smaller than the first diameter of the opening in one end of the at least one hammer. The sleeve has a second cylindrical outer surface with a third diameter, the third diameter being larger than said second diameter. A shoulder on the sleeve extends from the second cylindrical outer surface to the third cylindrical outer surface. An annular groove is disposed in the first cylindrical outer surface. A snap ring is selectively disposed in the annular groove, the snap ring having an outer diameter which is larger than the second diameter, whereby the at least one hammer will be disposed between the shoulder and the snap ring. A second embodiment uses a compression ring with a groove in it, instead of using a snap ring.

REFERENCES:
patent: 6102312 (2000-08-01), Aberle
patent: 7278597 (2007-10-01), Fenton

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