Gas separation – Flexible or collapsible bag type – Seaming – reinforcing or bag structure
Patent
1987-03-12
1989-02-07
Spitzer, Robert H.
Gas separation
Flexible or collapsible bag type
Seaming, reinforcing or bag structure
55DIG5, 55DIG12, 553851, B01D 3916
Patent
active
048029009
ABSTRACT:
A filter bag enclosure for containing a laboratory animal and a carrier therefor during transportation is provided with lateral and top seals which prevent gaseous communication with the laboratory animal therewithin except through the filter medium which forms the lateral sides of the filter bag. In accordance with the invention, the lateral edges of the filter bag are sealingly joined to one another by the application of acoustic energy. A length of sealing material, which may be polyethylene, is advantageously interposed between the edges prior to the application of the acoustic energy so as to enhance the reliability of the lateral seals. The top portion of the filter bag is provided with polyethylene strips joined thereto, illustratively by the use of ultrasonic acoustic energy. After the laboratory animal and its carrier is installed inside of the filter bag, the filter bag may be closed by conventional heat sealing of the polyethylene top strips.
REFERENCES:
patent: 1190221 (1916-07-01), Daugherty
patent: 2154638 (1939-04-01), Reeves
patent: 2490057 (1949-12-01), Irmscher
patent: 2787548 (1957-04-01), Dannenhoffer et al.
patent: 3105617 (1963-10-01), Felldin
patent: 3203551 (1965-08-01), Loan, Jr.
patent: 3243099 (1966-03-01), Winegard
patent: 3907530 (1975-09-01), Fesco
patent: 3990872 (1976-11-01), Cullen
patent: 4415597 (1983-11-01), Romagnoli
patent: 4666479 (1987-05-01), Shoji
Ball Keith R.
Thompson David M.
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