Ventilation – Workstation ventilator – Movable
Patent
1994-03-08
1995-06-27
Joyce, Harold
Ventilation
Workstation ventilator
Movable
285166, 285184, 454197, B08B 1502
Patent
active
054275709
ABSTRACT:
An exhaust hood system comprising an exhaust fan fastened to a window frame of a room and covered with a hood having an intake port coupled with a guide tube being fastened to the wall of the room by a holder, a series of universal connecting tubes linked together and connected to the guide tube by swivel connectors, and an exhaust connected to the series of universal connecting tubes for carrying smoke outside the room through the series of universal connecting tube upon operation of the exhaust fan, the series of universal connecting tubes being turnable and bendable for permitting the exhaust hood to be moved to the desired position and direction to suck in smoke.
REFERENCES:
patent: 505250 (1893-09-01), Paietta
patent: 877420 (1908-01-01), Hackney
patent: 1695263 (1928-12-01), Jacques
patent: 2083970 (1937-06-01), Walter
patent: 2278356 (1942-03-01), Livingston
patent: 2680358 (1954-06-01), Zublin
patent: 2729473 (1956-01-01), Warshawsky
Joyce Harold
Klein David I.
Rosenberg Morton J.
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