Clean tunnel conveying structure

Details Clean tunnel conveying structure Clean tunnel conveying structure

1985-08-30

1987-03-17

Reeves, Robert B.

Railways

Tubular way

104140, 414217, 15306B, B61B 1310, B61F 1300, B65G 4905

Patent

active

046498303

ABSTRACT:
Articles are transferred in a coverless casing while avoiding contamination. The casing is disposed in a first tunnel zone and attached to, but isolated with separator, from a driving assembly located in a second tunnel zone. Air openings exist between the separators through which a column connects the casing to the driving assembly. Blowers force air through a filter into the first tunnel zone, where it flows through the air openings into the second tunnel zone, then is withdrawn through an air outlet. This air flow keeps the first tunnel zone clean by not permitting contaminants from the second tunnel zone to enter the first tunnel zone.

REFERENCES:
patent: 886627 (1908-05-01), Neebe
patent: 4133255 (1979-01-01), Guice
patent: 4338958 (1982-07-01), Fujita
patent: 4540326 (1985-09-01), Southworth et al.

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