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

Claim 0:
1. 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 including an annular ring having a rim and defining an open central area spanned by a bridge; and
a buoyant member including an annular ring mounted against the rim, the annular ring of the buoyant member defining a central opening receiving the rim, wherein, when the float valve is in a first position, the float valve opens the liquid flow opening allowing fluid to flow from the container into the feeding basin and, when the float valve is in a second position, the float valve closes the liquid flow opening to prevent fluid flow from the nectar container into the feeding basin.