Abstract: The invention comprises a method and apparatus for breaking apart tightly compressed and interlocked articles such as plastic bottles into separate individual articles in a form suitable for subsequent processing.
Type:
Grant
Filed:
October 25, 1991
Date of Patent:
June 8, 1993
Assignee:
WTE Corporation
Inventors:
Norman W. Martin, Fritz Van Lingen, Stephen A. Zayachek, John J. Lasky, Jr.
Abstract: The invention comprises a method and apparatus for recycling foamed polystyrene from municipal solid waste and more particularly, from fast food restaurant waste. A steady stream of waste is delivered to a flail mill for reducing particle size, a rotary trommel for eliminating undersized waste and a rotary air classifier for removing "heavy" waste from the stream. At this point, the waste stream comprises mostly paper and foamed polystyrene. The paper and foamed polystyrene are delivered to a water pulper which fiberizes the paper so that it can then be separated from the foamed polystyrene by passing it through a screen of selected mesh size to allow the water and paper pulp to pass through while retaining the foamed polystyrene.
Type:
Grant
Filed:
July 18, 1991
Date of Patent:
March 30, 1993
Assignee:
WTE Corporation
Inventors:
George Trezek, Martin Stanczyk, Michael R. Grubbs
Abstract: The invention comprises a method and apparatus for recycling foamed polystyrene from municipal solid waste and more particularly, from fast food restaurant waste. A steady stream of waste is delivered to a flail mill for reducing particle size, a rotary trommel for eliminating undersized waste and a rotary air classifier for removing "heavy" waste from the stream. At this point, the waste stream comprises mostly paper and foamed polystyrene. The paper and foamed polystyrene are delivered to a water pulper which fiberizes the paper so that it can then be separated from the foamed polystyrene by passing it through a screen of selected mesh size to allow the water and paper pulp to pass through while retaining the foamed polystyrene.
Type:
Grant
Filed:
August 3, 1990
Date of Patent:
October 29, 1991
Assignee:
WTE Corporation
Inventors:
George Trezek, Martin Stanczyk, Michael Grubbs