Plastic and nonmetallic article shaping or treating: processes – Shaping or treating radioactive material
Patent
1990-06-01
1992-01-07
Wendtland, Richard W.
Plastic and nonmetallic article shaping or treating: processes
Shaping or treating radioactive material
252628, 422294, 422307, A61L 1100
Patent
active
050789244
ABSTRACT:
Apparatus and method for sterilizing and encapsulating contaminated waste particularly medical implement waste in which a volume of thermoplastic compound having a melting point temperature-calibrated at a value which corresponds substantially to the temperature at which all biological contamination is rendered sterile substantially on contact, and impregnating a space containing contaminated waste items with the liquid compound and thereafter cooling the mass to its solidified phase while containing it against protrusion of any waste item. Two stage treatment of the waste is effected by utilizing a second calibrated thermoplastic having a lower melting temperature in a common deformable waste container with the first thermoplastic. The container is locked in a first geometry by means of the first thermoplastic so that preliminary heating liquefies the second thermoplastic to at least partially encapsulate and sterilize successive charges of waste, while simultaneously creating additional space in the container to receive the subsequent charges of waste. When the container is heated to a final elevated temperature it is released from its initial geometry by the liquefaction of the first thermoplastic to complete the final encapsulation and sterilization process.
REFERENCES:
patent: 3476506 (1969-11-01), Andersen et al.
patent: 3892706 (1975-07-01), Jetzer
patent: 4409029 (1983-10-01), Larker et al.
patent: 4434074 (1984-02-01), Fox et al.
patent: 4662516 (1987-05-01), Baker, Sr. et al.
patent: 4756681 (1988-07-01), Unger et al.
patent: 4834917 (1989-05-01), Ramm et al.
patent: 4992217 (1991-02-01), Spinello
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