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:
Jan. 22, 1991
Filed:
Aug. 14, 1989
Michael C Swarden, Cambridge, MA (US);
Henry B Faulkner, Dover, MA (US);
Walter L Brassert, Belmont, MA (US);
James E Stoudt, Stamford, CT (US);
Ingersoll-Rand Company, Woodcliff Lake, NJ (US);
Abstract
A fluid jet shredder apparatus includes a conveyor for conveying a stream of material to be shredded. The conveyor has openings formed therein. A shredding station in position adjacent the conveyor and includes a fluid jet cutting nozzle directing a high pressure jet of fluid onto the stream of material. As a result, portions of the material are separated from the stream of material. The separated portions of material pass through the openings in the conveyor. A subsequent shredding station can be positioned downstream of the initial shredding station for directing a second and higher pressure jet of fluid onto the stream of material. The subsequent shredding station can therefore shred material which the initial, relatively lower pressure fluid jet failed to shred from the stream. Sequential shredding stations of incrementally increased pressure can progressively shred material of increased hardness from the stream. The fluid jets can selectively include an abrasive material.