Shroud for aircraft duct

Details Shroud for aircraft duct Shroud for aircraft duct

1985-07-12

1987-09-08

Bryant, III, James E.

Pipes and tubular conduits

Plural duct

Surrounding radially spaced duct with axially spaced...

138114, 138148, 138149, F16L 918

Patent

active

046917411

ABSTRACT:
The shroud is formed from sheet material and is cylindrical in shape. A plurality of spacers are associated with the sheet material. These spacers are designed to engage the outer surface of a duct to hold the cylindrical sheet material in radially outwardly-spaced relationship to the duct, defining thereby an insulating air gap between the outer surface of the duct and the shroud. The angular space between the spacers serves as gas channels to permit gas to flow between the shroud and the outer surface of the duct, along the length of the duct. The shroud has a straight axially-extending slot along its entire length for easy removal from a duct. An axially-extending edge receiving pocket is formed on the shroud adjacent to the slot for receiving the adjacent longitudinally extending edge of the slot to hold the shroud in a cylindrical shape and to provide a gas tight closure for the slot.

REFERENCES:
patent: 2076216 (1937-04-01), Stadtfeld
patent: 3471177 (1929-10-01), Garrett et al.
patent: 3911961 (1975-10-01), Peyton et al.
patent: 3918530 (1975-11-01), Nyholm
patent: 4303105 (1981-12-01), Rohner

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