US4776530A - Safety apparatus for hang glider - Google Patents

http://www.google.de/patents?id=6l42AAAAEBAJ&pg=PA1&zoom=4&dq=hang+gliding+harness

A safety apparatus for a hang glider that indicates any failure of a pilot to properly hook in a flight harness. The apparatus includes a circuit having a power source, such as a dry cell battery, connected to an alarm through a harness hook in…