Animal husbandry – Confining or housing – Animal display or open work enclosure
Patent
1996-02-26
1998-04-14
Weiss, John G.
Animal husbandry
Confining or housing
Animal display or open work enclosure
119475, A01K 3901, A01K 3902, A01K 3904
Patent
active
057380422
ABSTRACT:
A removable bird feeding bowl has an upper lip and a circumferential locking surface which is spaced below the upper lip. According to a first embodiment, the locking surface includes two diametrically opposed detents spaced below the upper lip of the bowl. The bowl may be used with an existing supporting ring by snapping the bowl into the ring. According to a second embodiment, the locking surface includes a helical ridge having the form of a screw thread. The bowl may be used with an existing supporting ring by placing the bottom of the bowl into the ring until the helical ridge engages the ring and then twisting the bowl so that the helical ridge makes a screw-like connection with the supporting ring. The upper lip of the bowl stops the bowl from rotating through the ring. According to a third embodiment, a removable bird feeding bowl and support ring assembly is provided. The bowl is substantially the same as the first embodiment and the ring is provided with a pair of diametrically opposed cut-outs which allow the detents on the bowl to pass through the ring. The bowl is placed in the ring by aligning the detents with the cutouts. When the upper lip of bowl contacts the ring, the bowl is rotated so the detents are move out of alignment with the cut-outs and thereby prevent the bowl from being lifted out of the ring.
REFERENCES:
patent: 1719769 (1929-07-01), Kaufman
patent: 1879332 (1932-09-01), Kulp
patent: 3049093 (1962-08-01), Oliver
patent: 4995342 (1991-02-01), Hinrichs et al.
patent: 5467733 (1995-11-01), Messina
patent: 5549074 (1996-08-01), Hui
O Ki Yong
Weiss John G.
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