Research/Patents/US 4941627
US 4941627

GUIDANCE AND CONTROL FIN

Assignee

Filed

Dec 16, 1975

Granted

Jul 17, 1990

Location

VA US

Abstract

A hollow fin of rhombical cross-section constructed of Nitinol or other memory effect alloy and mounted for oscillation about an internal shaft. The memory effect alloy has been previously stretched at a temperature below its critical transition temperature whereby heating of one pair of opposite sides, in a rhombic sense, above the critical transition temperature by resistive dissipation of an electric current will cause shortening of this pair of sides and consequent change in the angle of attack.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Mar 3, 1982

Rescinded

Apr 5, 1990

Duration

8 years, 1 month

Inventor

  • 1WILLIAM MATTHEW MOSCRIP

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