Signals and indicators – Indicators – By location
Patent
1979-08-13
1981-04-14
Yasich, Daniel M.
Signals and indicators
Indicators
By location
244 1711, G01D 2100, B64C 2704
Patent
active
042612845
ABSTRACT:
A search apparatus is provided for an aircraft. The search apparatus includes a transparent observation chamber and a plurality of bulkheads which divide the chamber into at least two compartments. A cradle is mounted within each compartment for supporting a bird with the head of the bird facing outwardly with respect to the chamber. A peck key is mounted in each chamber in proximity to the outward end of the cradle, and a tray is provided for containing food for the bird. A device is mounted within each compartment for sliding the tray inwardly or outwardly, the outward position being adapted to present food to the bird and the inward position being adapted to withdraw food from the bird. Indicators may be connected to the peck keys for indicating which bird in a chamber has visual contact with an object, and a control device may be provided for selectively actuating the food trays for the inward and outward movements.
REFERENCES:
patent: 1056503 (1913-03-01), Cooper
patent: 2517509 (1950-08-01), Sikorsky
patent: 3259345 (1966-07-01), Martignoni et al.
patent: 3421721 (1969-01-01), Miller
patent: 4022054 (1977-05-01), Biederman
Publication "Animal Guidance System", by L. G. Lawrence Electronics World, ec. 1971, (pp. 27-29, 50).
Johnston Ervin F.
Sciascia Richard S.
The United States of America as represented by the Secretary of
Yasich Daniel M.
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