Clean air supply means in a clean tunnel

Details Clean air supply means in a clean tunnel Clean air supply means in a clean tunnel

1985-08-30

1987-04-28

Joyce, Harold

Railways

Droppings catcher

55385A, 55473, 98 345, 98 49, 981152, 104139, 118326, F24F 710

Patent

active

046604642

ABSTRACT:
A plurality of air blowers spaced with each other are disposed along a side wall of a clean tunnel, thereby outer air is supplied into a tunnel zone by way of a filter. A clean air produced within the tunnel zone is circulated by disposing air outlets and a suction port in a zone of each blower. Thus, a constant clean air flow can be circulated without raising the temperature of the clean air within the clean tunnel.

REFERENCES:
patent: 2528087 (1950-10-01), Schoepe
patent: 2737879 (1956-03-01), Cooke et al.
patent: 3395972 (1968-08-01), Hardison
patent: 3487766 (1970-01-01), Wood
patent: 3630138 (1971-12-01), Marcussen et al.
patent: 4266504 (1981-05-01), Roesner
patent: 4338958 (1982-07-01), Fujita

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