1983-06-16
1985-05-07
Joyce, Harold
98DIG7, 98 941, F24F 706
Patent
active
045150702
ABSTRACT:
Method and apparatus for a mainly temporary ventilation of a room. A fan blows air from the room through an inflatable balloon, being placed in a permanent opening, e.g. a window, in a wall limiting the room. The balloon is provided with at least one exhaust opening being dimensioned so that an overpressure is built up inside the balloon sufficient to keep the balloon inflated and in abutment with the limitations of the opening.
REFERENCES:
patent: 1954017 (1934-04-01), Manning
patent: 2348455 (1944-05-01), Daudelin
patent: 2480441 (1949-08-01), Bingham
patent: 2960924 (1960-11-01), Grott
Bobjer Olle
Dahlin Torsten
Grieves John
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