Apparatus of shrinking volumes of waste foamed plastics

Details Apparatus of shrinking volumes of waste foamed plastics Apparatus of shrinking volumes of waste foamed plastics

1991-01-24

1992-05-19

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

With separate and distinct upstream agitating or kneading means

425202, 425205, 425209, 425225, 425311, 264 37, B29C 4710, B29C 4738

Patent

active

051143313

ABSTRACT:
The present invention relates to an apparatus for shrinking volumes of waste foamed plastics which have been used as packing materials. The waste plastic materials are thrown into a hopper provided on a crushing room having an opening in an upper part and tapering towards its lower part. A plurality of crushing vanes having a radius of gyration of length reaching within said hopper rotate in said crushing room, to break the foamed plastics into shreds. The broken plastics flow into a sending cylinder through a receipt opening toward the side wall of the crushing room, and are sent forward by screw vanes within the sending cylinder. Subsequently, the waste plastics are compressed in a compression cylinder connected in series to the sending cylinder and further softened and de-foamed by a heating cylinder and exhausted through a nozzle provided at the end of the housing cylinder. Extruded bar like shrinked resins are cut into chips by a rotating cutter and exhausted from the apparatus by air flow.

REFERENCES:
patent: 2991503 (1961-07-01), Rietz
patent: 3288443 (1966-11-01), Lynch et al.
patent: 3493031 (1970-02-01), Williams, Jr. et al.
patent: 3862594 (1975-01-01), Stolting et al.
patent: 3954366 (1976-05-01), Fields
patent: 4078874 (1978-03-01), Lenhardt, Sr.
patent: 4091967 (1978-05-01), Knoshita
patent: 4118164 (1978-10-01), Wenger et al.
patent: 4184772 (1980-01-01), Meyer
patent: 4223811 (1980-09-01), Czegledi
patent: 4322202 (1982-03-01), Martinez
patent: 4415514 (1983-11-01), Dorrestijn et al.
patent: 4460277 (1984-07-01), Schulz et al.
patent: 4645445 (1987-02-01), Takanashi
patent: 4817517 (1989-04-01), Ammann et al.
patent: 4842788 (1989-06-01), Johnson
patent: 4854847 (1989-08-01), Mendoza
patent: 4894001 (1990-01-01), Petschner

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