Research/Patents/US 5233827
US 5233827

RADIATION SUPRESSION

Assignee

ALLISON ENGINE COMPANY, INC.

Filed

Jun 8, 1970

Granted

Aug 10, 1993

Location

INDIANAPOLIS IN US

Abstract

An arrangement to mask direct view of the discharge end of a turbine through an exhaust duct extending downstream from the turbine. The turbine has an annular outlet. Two annular rows of fixed vanes are mounted in the outlet, one immediately upstream of the other. The two sets of vanes are reversely cambered so that the overall turning effect is insignificant and they are so located that each set of vanes blocks sight of the turbine through the gaps between the vanes of the other set.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Dec 18, 1981

Rescinded

Mar 17, 1993

Duration

11 years, 3 months

Inventor

  • 1DOUGLAS JOHNSON

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records