US Patent 7441944 Drinking extension for blender container

A blender system composed of a mixing base that is capable of agitating the contents of one or more containers. The mixing base includes a blade element, a recessed well positioned at a top of the mixing base, a pressure-actuated switch positioned about the periphery of the recessed well, and a locking groove. A container may have a single open end, a container body, a selectively removable container base, the container base sized to fit into the recessed well of the mixing base, the container base comprising a blade element and locking members to lock the container within the recessed well of the mixing base. The container body further comprises an attachment element for attaching the container base, and a substantially smooth extension between the attachment element and the open end of the container body to facilitate drinking or pouring the contents of the container body.