The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 24, 1985
Filed:
May. 04, 1984
Michael W Rouse, West Linn, OR (US);
Robert L Thelen, Woodburn, OR (US);
Waste Recovery, Inc., Dallas, TX (US);
Abstract
Apparatus for comminuting scrap materials, particularly fiber-reinforced resilient materials such as scrap tires, includes a pair of generally cylindrical cutter rolls mounted for rotation with parallel cutter discs of each roll intermeshed closely between cutter discs of the cutter roll. The cutter discs on each cutter roll are of a series of thicknesses, and each cutter disc includes a plurality of cutter segments attached about its periphery. Cutter segments are reversible end-for-end to present a sharp edge for drawing scrap material between the intermeshed cutter rolls. A method of sharpening the apparatus includes removing worn cutter segments from the cutter discs, grinding lateral surfaces of each cutter segment, and thereafter fastening the cutter segments on a next thinner one of the cutter discs. Annular clearing rings surround the shaft of each cutter roll between neighboring cutter discs of that cutter roll. The clearing rings are free to move radially and have a large enough size to force cut pieces of scrap material radially outward from between the neighboring cutter discs.