US Patent 8220731 Food waste disposer and threaded mount system

A food waste disposer and mount system has a threaded sink flange and a food waste disposer. The threaded sink flange has a tubular body portion and a flange portion extending radially outwardly from a top of the tubular body portion. The tubular body portion has a threaded portion. The food waste disposer has an upper food conveying section that includes a housing having an upper, annular portion having a threaded portion. The upper, annular portion of the housing of the upper food conveying section is threaded to the threaded portion of the tubular body portion of the threaded sink flange when the threaded sink flange is disposed in a draining opening of a sink to mount the food waste disposer to the sink.