Communications: electrical – Systems – Call station
Patent
1976-06-23
1977-10-25
Swann, III, Glen R.
Communications: electrical
Systems
Call station
119 1, 128361, 340224, 340282, G08B 2100
Patent
active
040558398
ABSTRACT:
A foaling alarm adapted to be positioned around the withers and belly of a mare just behind the forearms and having, in the region of the withers, an RF transmitter, and a position sensing switch which energizes the transmitter when the mare lies down on her side in foaling position. The transmitter, when thus energized, actuates a remote receiver which, in turn, actuates an audio and/or visual alarm for summoning aid by the mare's attendant or owner.
REFERENCES:
patent: 3268845 (1966-08-01), Whitmore
patent: 3533095 (1970-10-01), Collins
patent: 3572316 (1971-03-01), Vogelman et al.
patent: 3588858 (1971-06-01), Demuth
patent: 3740648 (1973-06-01), Grotjahn
patent: 3827403 (1974-08-01), Meyer
Locust Farms, Inc.
Swann III Glen R.
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