A - Human Necessities – 01 – K
Patent
A - Human Necessities
01
K
43/21
A01K 97/00 (2006.01)
Patent
CA 1038625
ABSTRACT OF THE DISCLOSURE An upstanding generally cylindrical body is provided and includes upper and lower vertically spaced closure walls extending and sealingly secured across the lower end portion of the body. An upwardly opening water receptacle is defined above the upper closure wall and a closed airtight chamber is defined within the body between the upper and lower closure walls. An inverted U-shaped tube has one end thereof secured downwardly through the upper closure wall and the other end has a reverse bond formed therein and includes an up- wardly directed terminal and having a tubular valve body supported therefrom. A valve element is shiftably supported from the valve body for movement between open and closed positions and a support member is threadedly engaged with the upper and of the valve body and includes an abutment portion selectively engage-able with the valve element to variably displace the latter away from a closed position toward an open position for controlling the vanting of air from the airtight chamber through the inverted U-shaped tube and outwardly through the tubular valve body for bubbling upwardly through the water contained within the receptable defined above the upper closure wall. In addition, structure is provided for introducing air under pressure into the airtight chamber defined between the upper and lower closure walls.
255979
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