Inflatable air inlet duct

Details Inflatable air inlet duct Inflatable air inlet duct

1977-10-25

1978-10-24

Cohan, Alan

Fluid handling

Processes

Cleaning, repairing, or assembling

244 53B, B64D 3302

Patent

active

041216067

ABSTRACT:
An air inlet duct for a jet propulsion missile or other vehicle which is movable between a housed, pre-launch position and an extended or deployed flight position. A method of manufacturing the duct is also disclosed. The duct system includes a flexible leading edge attached to a double-wall inflatable duct body. Drop threads extend between the duct body walls to hold an exact desired contour when the duct is inflated. A pivotable plate moves the inflatable duct between a housed, deflated, position and an inflated flight position. Manufacture of the inflatable duct is basically accomplished by preparing a foamed plastic form in the desired duct wall shape, covering the form with fabric, stitching through the foam and fabric, coating the fabric with a flexible sealing compound, dissolving away the foamed plastic and attaching the resulting inflatable duct to other missile components.

REFERENCES:
patent: 3074232 (1963-01-01), Soyer
patent: 3119581 (1964-01-01), Trevaskis
patent: 3482783 (1969-12-01), Nebiker

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