Signals and indicators – Indicators – By location
Patent
1979-08-13
1981-04-14
Yasich, Daniel M.
Signals and indicators
Indicators
By location
40216, 111 33, 244138R, B64D 102, G09F 104
Patent
active
042612837
ABSTRACT:
This invention is directed to a marker which can be dropped from an aircraft, such as an airplane or a helicopter, so that the pilot of an airplane can see the marker on the ground or on the growing plants and trees, and know, when he is in the aircraft, where the aircraft has flown for spraying fertilizer, insecticides, herbicides and the like. The drop marker comprises a base member which may be unitary or integral. The drop marker upon falling from the aircraft towards the ground is of such a construction that the base member divides in two pieces. The drop marker also comprises a folded streamer strip. One end of the streamer strip is attached to the first piece of the base member and the other end of the streamer strip is attached to the second piece of the base member. The drop marker unfolds upon falling from the aircraft toward the ground. The drop marker, upon reaching the ground and with the streamer strip unfolded, makes it possible for the pilot of the aircraft to know where he has sprayed the chemical carried by the aircraft.
REFERENCES:
patent: 1615947 (1927-02-01), Klapka
patent: 2871596 (1959-02-01), Weiss
patent: 3112906 (1963-12-01), Zeyher
patent: 3164801 (1965-01-01), Nicholl
patent: 3273284 (1966-09-01), Anagnostou
patent: 3334554 (1969-08-01), Adams
patent: 3374973 (1968-03-01), Lokerson
patent: 3428019 (1969-02-01), Tillay et al.
patent: 3517449 (1970-06-01), Frandsen et al.
Secrest Thomas W.
Yasich Daniel M.
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