Claims
- 1. In a rocket motor having a nozzle including an entrance section a throat section and an exit section, closure means for controlling the opening of said nozzle responsive to ignition of said rocket motor comprising:
- a. a forward section disposed in said entrance section of said nozzle, said forward section having a cylindrical configuration, said forward section having a diameter substantially equal to the diameter of said throat;
- b. an intermediate section disposed in said throat section; and,
- c. an aft section disposed in said exit section of said nozzle,
- d. said closure member having a predetermined density and mass for controlling the change of momentum of the closure member responsive to ejection thereof from said nozzle, whereby said nozzle opening is controlled incrementally or continuously.
- 2. A nozzle closure as set forth in claim 1 wherein said forward section is provided with a solid cylindrical configuration.
- 3. A nozzle closure as set forth in claim 1 wherein said aft section is provided with a solid frusto-conical configuration.
- 4. A nozzle closure as set forth in claim 1 wherein said aft section is provided with a frusto-conical configuration having a cut-out portion in the base thereof.
- 5. A nozzle closure as set forth in claim 4 wherein said aft section is provided with a frusto-conical configuration having a diverse material carried therein.
- 6. A nozzle closure as set forth in claim 1 wherein said forward section is provided with a hollow cylindrical configuration.
Parent Case Info
This is a division of application Ser. No. 484,035, now U.S. Pat. No. 3,968,646 filed June 28, 1974.
US Referenced Citations (3)
Divisions (1)
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Number |
Date |
Country |
Parent |
484035 |
Jun 1974 |
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