Patent ID: 11944075
Assignee: WOODSTREAM CORPORATION
Field: Other special machines (Mechanical engineering)
Classification: CPC A | IPC A

Claim 10:
11. A top-fill hummingbird feeder, comprising:
a nectar container with a liquid flow opening at a lower end and a removable cap at an upper end;
a feeding basin positioned below the nectar container for containing nectar accessed by birds through at least one feeding port; and
a sealing mechanism associated with the liquid flow opening of the nectar container and the feeding basin, the sealing mechanism including a float valve having a frame and a buoyant member discrete from the frame, and which, when the float valve is in a first position, opens the liquid flow opening allowing fluid to flow from the container into the nectar basin and, when the float valve is in a second position, closes the liquid flow opening to prevent fluid flow from the container into the nectar basin, the frame of the float valve including an annular ring having a generally flat upper surface and a downwardly depending wall that forms a rim, the outer perimeter of the upper surface forming a generally horizontal lip, and the buoyant member including an annular ring mounted against the rim, at least part of an upper surface of the annular ring of the buoyant member being captured by and under the lip.