Two stage rocket with pressure responsive means for frictionally

Details Two stage rocket with pressure responsive means for frictionally Two stage rocket with pressure responsive means for frictionally

1974-03-25

1976-03-16

Shay, F. Barry

46 74B, A63H 2706

Patent

active

039436560

ABSTRACT:
A toy rocket has a motor receptacle designed to receive a rocket motor of the type fueled by a self-pressurizing liquid propellant. The rocket motor during the fueling operation has its nozzle seated in a launcher through which liquid propellant flows into the propellant cavity of the rocket motor. When the propellant cavity of the rocket motor is pressurized, a member responsive to propellant pressure in the rocket motor engages a portion of the walls of the motor receptacle in the rocket body. When the pressure responsive member releases the receptacle walls, relative motion is provided between at least a portion of the rocket body and the rocket motor. For example, in one embodiment of the toy rocket, a second stage portion of the rocket is spring-biased away from a first stage portion of the rocket body. The major section of the rocket motor is fixed to the first stage portion. The pressure responsive member on the rocket motor engages the second stage portion while the rocket motor contains propellant to prevent separation of the first and second stages. When the propellant is expended, the pressure responsive member releases the second stage, allowing separation of the second stage from the first stage. A parachute is then deployed from the second stage to brake the descent of the rocket.

REFERENCES:
patent: 2841084 (1958-07-01), Carlisle
patent: 2927398 (1960-03-01), Kaye et al.
patent: 3025633 (1962-03-01), Kaye et al.
patent: 3049832 (1962-08-01), Joffe
patent: 3121292 (1964-02-01), Butler et al.
patent: 3510980 (1970-05-01), Pippin

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