Electric lamp or space discharge component or device manufacturi – Process – Repairing – converting or salvaging
Patent
1998-04-14
1999-10-05
Ramsey, Kenneth J.
Electric lamp or space discharge component or device manufacturi
Process
Repairing, converting or salvaging
445 61, B02C 100
Patent
active
059613599
ABSTRACT:
The present invention relates to a method and/or device wherein a cathode ray tube (CRT) is dismantled into components, in a relatively dust free and safe environment, utilizing an energy efficient method, creating an end product of crushed leaded glass, leaded dust, nickel containing material and steel in a form suitable for recycling. The present invention is especially useful in lieu of discarding or landfilling CRTs, since the leaded glass of CRTs has been regulated and classified as a "regulated hazardous waste" accordingly to recent United States government land ban regulations, and are therefore banned from landfilling. The present invention is further concerned with a device for performing the method of the present invention, said device comprising: a dismantling unit for separating external components of the CRT from the CRT body; a crushing unit with crushing means for separating the glass components from the metal components; a vacuum unit with vacuum means for collecting dust created during the method of the invention. In the preferred embodiment of the invention, the floor of the crushing unit is slotted, whereby the pieces of crushed glass fall into the shipping container, and the metal components remain on the slotted floor. Thus minimizing the handling of the crushed glass. This causes minimal handling of the recyclable end products. Also, the vacuum condition created by the present invention creates ensures that exposure to leaded dust is minimal, safe and captures leaded dust for recycling.
REFERENCES:
patent: 3981554 (1976-09-01), Todd
patent: 3997311 (1976-12-01), Rogers
patent: 4952185 (1990-08-01), Lee
patent: 5316510 (1994-05-01), Muhlberger et al.
patent: 5352142 (1994-10-01), Wolf
patent: 5556018 (1996-09-01), Kanehira
Ramsey Kenneth J.
Whiting Mary A.
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