Patent ID: 6619586
Filing Date: 2003-09-16
Classification: B64B

Abstract:
A thermal airship buoyancy controller comprising:(a) an airship envelope air temperature sensor and means of temperature data transmission, (b) an ambient air temperature sensor and means of temperature data transmission, (c) a means of establishing a differential temperature value of said temperature data transmission from said airship envelope air temperature sensor and said temperature data transmission from said ambient air temperature sensor expressed as an output signal, (d) a means of comparison between said output signal of said means of establishing a differential temperature value and an operator selected difference temperature setpoint value which will: (1) cause a means of adding heat to the airship envelope air when said means of establishing a difference temperature value is below that of said operator selected difference temperature setpoint value, and (2) cause a means of suspending said means of adding heat to said airship envelope air when said means of establishing a difference temperature value is above that of said operator selected difference temperature setpoint value, whereby said means of comparison elicits said means of adding heat to said airship envelope air as a way of equalizing said comparison, and whereby said means of comparison elicits said means of suspending said means of adding heat to said airship envelope air as a way of said equalizing of said comparison.