Multipiece, slidable duct assembly for aircraft anit-icing condu

Details Multipiece, slidable duct assembly for aircraft anit-icing condu Multipiece, slidable duct assembly for aircraft anit-icing condu

1996-06-17

1999-02-02

Grant, William

Aeronautics and astronautics

Aircraft structure

Ice prevention

2395871, 239DIG4, 285302, B64D 1504

Patent

active

058654003

ABSTRACT:
Disclosed is a pressurized, slidable duct assembly for conducting compressed air from a fixed component to a component that is movable with respect to the fixed component. The duct assembly has at least three metallic, telescoping, tubular conduit sections rotatably interconnecting an air supply duct to an air delivery duct. An upstream slide bearing and a spaced-apart downstream slide bearing are disposed between each pair of opposing inner and outer conduit section surfaces. Disposed between each set of upstream and downstream slide bearings is a seal to substantially prevent the escape of air from the duct assembly. A stop located between each seal and downstream slide bearing axially positions the conduit sections when the duct assembly is fully extended.

REFERENCES:
patent: 3656784 (1972-04-01), Dow et al.
patent: 4296953 (1981-10-01), Nagao et al.
patent: 4543677 (1985-10-01), Haglund et al.
patent: 4603824 (1986-08-01), McArdel
patent: 4615499 (1986-10-01), Knowler
patent: 4752049 (1988-06-01), Cole
patent: 4976397 (1990-12-01), Rudolph et al.

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