System for disposing waste
US5301881A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 1993 |
| Grant date | Apr 12, 1994 |
| Priority date | — |
| Expiry date | May 5, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S241/38
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A waste disposal system includes a stock yard for storing waste articles, a pre-treatment apparatus for separating a metal bulk from each waste article fed from the stock yard, a cryogenic crushing apparatus for crushing the separated metal bulk, and a crushing apparatus for crushing the portion of the waste article other than the metal bulk. The system further includes a light-weight article separating apparatus for separating the crushed waste from said crushing apparatus into foamed material and other wastes, and a foaming agent collecting apparatus which separates the foamed material into solid plastics and gaseous foaming agent and then cools and liquefies the gaseous foaming agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.