Animal husbandry – Watering or liquid feed device – Temperature-controlling
Patent
1984-11-05
1986-07-15
Swiatek, Robert P.
Animal husbandry
Watering or liquid feed device
Temperature-controlling
219316, 219437, 219523, H05B 378, A01K 700
Patent
active
045999732
ABSTRACT:
A water heater (10 or 70) for a stock watering tank includes a first (20 or 72) housing portion of molded aluminum, and a second (62 or 94) housing portion of plastic. An electric heating element (12 or 74) is molded into the first housing portion. One of the housing portions includes a cavity (36 or 99). A thermostatically controlled switch (50) is inserted into the cavity and is bonded to the first housing portion.
REFERENCES:
patent: 2378772 (1945-06-01), Hummel
patent: 2561932 (1951-07-01), Landgraf
patent: 2774856 (1956-12-01), Paulsen et al.
patent: 2849588 (1958-08-01), Marcuse
patent: 4213034 (1980-07-01), Goss et al.
Miller Wendell E.
Swiatek Robert P.
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