Special receptacle or package – Miscellaneous
Patent
1983-02-22
1984-05-29
Dixson, Jr., William T.
Special receptacle or package
Miscellaneous
55502, 55DIG9, 206525, B65D 8500, G21C 900
Patent
active
044509642
ABSTRACT:
An essentially air tight plastic bag is disclosed, together with a novel method of replacing such bag on the flange surrounding the side access opening of a HEPA filter housing and in accordance with the conventional bag-out, bag-in procedure for removing a potentially contaminated article, such as a filter, from the housing. The novel method includes moving the article through the side access door into the bag, gathering the bag together at a location intermediate the filter in the bag and the open end of the bag, and circumferentially compressing the gathered portion of the bag at two closely spaced apart locations by means of two metal compression bands. The manner in which the bands are applied results in sufficient compressive force at each location to form an essentially solid sealing plug having the appearance and physical characteristics of a rigid, solid rod segment. The bag may then be severed between the two bands to form an outer closed bag portion which encloses the filter, as well as a closed bag stub which remains mounted to the housing flange.
REFERENCES:
patent: 3521675 (1970-07-01), Dussich
patent: 3785406 (1974-01-01), Delmar
patent: 4193844 (1980-03-01), Neumann et al.
Dixson, Jr. William T.
Flanders Filters, Inc.
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