Solid material comminution or disintegration – Processes – With classifying or separating of material
Patent
1995-04-18
1998-03-03
Husar, John M.
Solid material comminution or disintegration
Processes
With classifying or separating of material
241 2413, 241 27, 2411865, 241246, B02C 1806, B02C 1822
Patent
active
057226040
ABSTRACT:
A shredder is provided for shredding agglomerated metal scrap from a machining process. The shredder includes a rotatable shredding tool mounted on a drive shaft that is rotated using conventional power transmission devices. The axis of the shredder drive shaft is approximately in-line with the drive shaft of a feed device that delivers metal scrap to be shredded to the rotating shredding tool. The shredding tool is rotated so that the teeth of the shredding tool tear against the leading edge of the agglomerated metal scrap. Optionally, fixed hooks are located on one or both of the feed device and the shredder housing for engaging the agglomerated metal scrap. Where fixed hooks or anchors are used, the rotating tool engages the agglomerated metal scrap and spins the metal scrap against the fixed hooks, thus causing further shredding to occur. The shredding tool may be spring-loaded for axial movement in such a way as to allow it to move away from an object that causes it to jam. Also, alternatively, the shredding tool is reversibly rotatable, and the shredding tool teeth are oriented so that the shredding tool kicks away and unjams when reversibly rotated. In one form, the teeth on the shredding tool are flexible finger-like members that extends axially toward and engage the metal scrap as the scrap is output from the feed device.
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Exhibit A entitled "Steimel Crusher" is a product description and drawing, published by Steimel Company, publication date unknown, discloses a long chip crusher, (No Date Given).
Exhibit B entitled "How the PRAB Vertical Axis Crusher Works," published by PRAB Company, publication date unknown, discloses a vertical axis chip crusher, (No Date Given).
Exhibit C entitled "Reclamet system adds value . . .," published by Reclamet Company, publication date unknown, discloses an automatic chip processing system including a shredder, (No Date Given).
Exhibit D entitled "Construction Features Worth Looking Into," published by American Pulverizer, publication date unknown, discloses a chip crusher, (No Date Given).
Exhibit E entitled "State of the Art Solutions--For All your Chip Processing Needs," published by Chip Systems International, assignee of the present application, published in 1994, discloses chip handling systems including a conveyor and shredder on pp. 2, 11 and 12, and a screw conveyor with a U-shaped housing on pp. 21 and 22.
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