Top-fill hummingbird feeder with float valve base closure mechanism
a top-filling, hummingbird technology, applied in the field of bird feeders, can solve the problems of food level, so-called “vacuum-type” feeders also have problems, attendant risks of spillage, etc., and achieve the effect of easy top-filling
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first embodiment
[0044]As shown in FIG. 1, a top-fill hummingbird feeder in accordance with the present invention is generally designated by reference numeral 10. The feeder consists of a reservoir bottle or liquid container generally designated by reference numeral 12, a feeding basin generally designated by reference numeral 14, and a sealing or valve mechanism generally designated by reference numeral 16. As shown in the enlarged view of FIG. 2, the sealing or valve mechanism 16 includes a float valve 20 configured for engagement with the lower end of the liquid container 12.
[0045]The liquid container 12 has an upstanding neck 22 forming a large opening 24 at its upper end 13 for easy filling and cleaning of the liquid container. The bottom of the liquid container forms a generally cylindrical bottleneck-shaped extension 26 with external threads 28 so that it can be screw-threaded into the mating threads of a cylindrical wall 29 of an upwardly extending cylindrical well 30 of the feeding basin 14...
second embodiment
[0057]A float valve style hummingbird feeder in accordance with the present invention is shown in FIGS. 3-6 and is generally designated by reference numeral 100. The feeder consists of a reservoir bottle or liquid container generally designated by reference numeral 112, a feeding basin generally designated by reference numeral 114, and a sealing mechanism generally designated by reference numeral 116 that includes a float valve 120 and a seal plate 122 configured for engagement with the lower end 132 of the liquid container 112.
[0058]A removable top or cap 150, secured in place such as by threads 154 that mate with corresponding threads 155 inside the cap, closes off the large opening 156 at the upper end of the liquid container 112 when the cap is tightened. The cap 150 is vented to prevent a vacuum condition and allow atmospheric pressure to act on the column of nectar being fed into the feeding basin from the container in the same manner as in the first embodiment.
[0059]The botto...
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