Screening apparatus with hammermill

Details Screening apparatus with hammermill Screening apparatus with hammermill

2006-10-17

2006-10-17

Larson, Lowell A. (Department: 3725)

Solid material comminution or disintegration

Apparatus

With separation or classification of material

C241S283000, C241S284000, C241S285300, C241S287000, C241S289000, C241S290000

Reexamination Certificate

active

07121487

ABSTRACT:
A screening machine on a frame with a hopper having a conveyor belt. The conveyor belt discharges particulate material poured into the hopper into a rotating barrel screen or vibrating planar screen for sifting the material. A hammermill apparatus is pivotably mounted on a hood member to an arm that is pivotably mounted to the frame of the machine. The hammermill is positioned above the conveyor belt at the discharge end. The hammermill can pivot upwardly relative to the arm upon striking a large object on the conveyor belt, and a spring mounted to the arm and the hood biases the hammermill back to its original position. A hydraulic ram is drivingly linked to the arm for manually or automatically displacing the hammermill relative to the conveyor belt.

REFERENCES:
patent: 5427250 (1995-06-01), Page et al.
patent: 5593096 (1997-01-01), Harker et al.
patent: 5722605 (1998-03-01), Finken
patent: 5819950 (1998-10-01), McCloskey
patent: 6095442 (2000-08-01), Doelle
patent: 6685118 (2004-02-01), Williams, Jr.
Author Unknown; “The Screen Machine Multi-Blend 1” (5 pgs); remainder unknown.

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