Package making – With contents treating – Vacuum or inert atmosphere
Patent
1983-07-15
1986-06-03
Lechert, Jr., Stephen J.
Package making
With contents treating
Vacuum or inert atmosphere
53298, 53329, 252626, 252633, B65B 3102
Patent
active
045921920
ABSTRACT:
A method of and apparatus for packaging contaminated or poisonous waste materials. The waste materials are deposited in a plastic bag disposed on a cylindrical opening in a container provided with a lid and having vacuum and filter means for sucking air off the area of the open upper end of the plastic bag when the lid is opened for disposal of waste. Below the lid there is provided a plastic foil and means for moving the plastic foil over the bag opening for sealing the plastic bag by means of a heating structure which is adapted to engage and heat the plastic bag and foil. Before sealing of the bag, however, the vacuum means is energized with the lid closed so that the plastic bag is evacuated and, after sealing and opening of the container cover, may be removed in a compressed, easily manageable state with relatively small volume.
REFERENCES:
patent: 3899967 (1975-08-01), Powers
patent: 3996725 (1976-12-01), Walles
patent: 4008658 (1977-02-01), Stock et al.
patent: 4061480 (1977-12-01), Frye et al.
patent: 4273037 (1981-06-01), Ruebesam
patent: 4282699 (1981-08-01), Embro
patent: 4357541 (1982-11-01), Ernst
Jacob Manfred
Tews Fritz
Gesellschaft fuer Nukleartechnik mbH
Lechert Jr. Stephen J.
Locker Howard J.
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