Animal husbandry – Feeding device – Hopper and trough
Patent
1978-10-10
1980-08-19
Moffitt, James W.
Animal husbandry
Feeding device
Hopper and trough
119 29, A61B 704, H04R 146
Patent
active
042185840
ABSTRACT:
This invention is a stethoscope for use by a veterinary surgeon with a microphone transducer (15) mounted within a casing arranged to be held by a harness against the skin of the animal, with the transducer opening coupled to the skin through an enclosed column of air, and the harness held in position by a grid (33, 34) capable of being attached to the animal's hair. The output from the transducer can be transmitted from the animal by radio.
REFERENCES:
patent: 2583941 (1952-01-01), Gordon
patent: 2755336 (1956-07-01), Zener et al.
patent: 3283181 (1966-11-01), Johanson
patent: 3525810 (1970-08-01), Adler
patent: 3543724 (1970-12-01), Kirkpatrick et al.
patent: 3867925 (1975-02-01), Ersek
patent: 4008711 (1977-02-01), Olinger
Behavior Research Methods and Instrumentation, Jun. 1977, vol. 9 (3), pp. 243-246, Instrumentation and Techniques, "A Nonobtrusive Heart Rate Telemetry System for Rats", M. Meinrath et al.
Conference: Proceedings of the 12th Annual Rocky Mountain Bioengineering Symposium and the 12th international ISA Biomedical Sciences Instrumentation Symposium, Denver, Colo., USA, Apr. 28-30, 1975, pp. 57-60, "Mortality-Sensing Wildlife Transmitters", A. Kolz.
Electronics, Dec. 23, 1960, pp. 54-55, "Radio Transmitter for Remote Heartbeat Measurements", G. A. Harten et al.
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