Abstract: A mixing apparatus for mixing paints contained within one or more containers. The mixing apparatus has an inner frame with a removable shelf to support the container. The mixing apparatus also has a cam-operated clamping device to selectively clamp the paint container to the shelf and a drive assembly to agitate the inner frame to mix the paint within the container. The clamping device may be selectively configured to accommodate paint containers of different heights.

Abstract: A mixing assembly is provided which mixes liquids within a container. The mixing assembly has a vertically extending support frame enclosed within an outer cabinet. Attached to at least one crank which is in turn attached to the support frame, is a vertically extending rigid frame. A rotary drive apparatus rotates the crank to cause the rigid frame to orbit in a vertical plane about a horizontal axis. The mixing apparatus also includes an attachment device which removably attaches the container to the rigid frame. When the attachment device is in a lower position, the attachment device urges an upper support member against the top of the container to clamp the container between the upper support member and a lower support member. The attachment device also includes a spring to move the upper support member upward and off the top of the container when the attachment device is not locked in a lower position.