Research/Patents/US 4821511
US 4821511

LINER FOR A SOLID PROPELLANT ROCKET MOTOR

Assignee

UNITED TECHNOLOGIES CORPORATION, HARTFORD, CT A CORP. OF DE

Filed

Oct 31, 1986

Granted

Apr 18, 1989

Location

SARATOGA CA US

Abstract

A curable liner for a solid propellent rocket motor includes a radiopaque material uniformly blended therein to provide a sufficient density difference between the propellant and insulator to enhance non-destructive X-ray evaluation of the liner propellant interface. Up to 10% powdered tungsten is added to a liner component mixture prior to incorporation in a rocket motor. Utilizing this radiopaque material in the liner mixture allows detection of previously undetectable voids, disbands or flaws at the liner propellant interface, thereby reducing the potential for failure of the rocket motor during operation.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Dec 28, 1987

Rescinded

Jun 13, 1988

Duration

5 months

Inventor

  • 1BERNARD R. FELIX

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