Navigational vent for hot air balloons

Details Navigational vent for hot air balloons Navigational vent for hot air balloons

1987-06-25

1989-06-06

Barefoot, Galen

Aeronautics and astronautics

Aircraft control

Drag

B64B 164

Patent

active

048364711

ABSTRACT:
An improved cap valving means for hot air load-carrying balloons which is designed to be opened and/or closed rapidly so as to assist in control of the balloon. The valve and/or vent includes a disc which may be opened by applying a force to a pull cord, and wherein the applied force is provided with an improved mechanical advantage so as to unseat the disc and thereby open the interior of the balloon envelope to the ambient. In addition to the pull cord, the control cord includes a number of disc cords which are spaced at substantially equally arcuately spaced points around the circumference of the disc, to assist in guiding the disc in its opening and closing motion.

REFERENCES:
patent: 37667 (1863-02-01), Shaw
patent: 1349335 (1920-08-01), Gunmeterp
patent: 2404659 (1946-07-01), Rohulick
patent: 3534927 (1970-10-01), Harding
patent: 4042192 (1977-08-01), Walter
patent: 4090682 (1978-05-01), Parsons
patent: 4402476 (1983-09-01), Wiederkehr

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