Bird watering device

Details Bird watering device Bird watering device

1989-05-22

1991-03-26

Swiatek, Robert P.

Animal husbandry

Watering or liquid feed device

Temperature-controlling

119 61, A01K 700

Patent

active

050020170

ABSTRACT:
The bird watering device utilizes solar energy to maintain drinking water in an unfrozen state even in freezing temperatures. Water is held in a shallow tray which fits within an enclosing dish with a substantial closed airspace between the tray and the dish to provide an insulating effect. A cover fits over the disk and tray, the cover being apertured to permit a bird access to water held in the tray. A rim extends downwardly from the aperture to substantially obstruct air circulation of air in the space between the cover and water held in the tray.

REFERENCES:
patent: 443446 (1890-12-01), Kouns
patent: 1150877 (1915-08-01), Olson
patent: 2446695 (1948-08-01), Didget
patent: 4221188 (1980-09-01), Hostetler
patent: 4426956 (1984-01-01), McKinstry

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