Robert M Lewis is an accomplished inventor based in Candler, NC (US). He holds a total of 3 patents that showcase his innovative contributions to various fields. His work primarily focuses on enhancing processes and devices that improve efficiency and functionality.

Latest Patents

One of his notable patents is the "Multi-mineral/ash benefication process and apparatus." This invention provides a method and apparatus for segregating ponded coal combustion materials for use in various products, such as block sand products, concrete, or mid-size sand products. The process involves screening ponded coal combustion raw materials to remove the first size material for use as a block sand product. The remaining material passes through a rotating magnetic separator to remove iron-bearing materials and then to a hydraulic classifier for separating coarse materials, middling size materials, and fine materials. The coarse materials are combined with the first size materials and de-watered to form the block sand product. The middling size materials are segregated into low, middle, and high specific gravity materials using spirals. The low specific gravity material is passed through a sizing sleeve, and coarse low specific gravity material is combined with the middle specific gravity material and de-watered to form a concrete or mid-size sand product. Fines from the hydraulic classifier are screened to form the fine ash product.

Another significant invention is the "Pedal driven propulsion device." This device is designed as an outboard motor for watercraft, such as canoes. It features a drive assembly and a propeller assembly with an upper and lower portion. A steering assembly is coupled to the drive assembly at the upper portion and to a propeller rotatively disposed at the lower portion, providing propulsion when activated by a human. The device includes a mounting assembly for installation between the gunwales of the watercraft. The propeller assembly incorporates a bevel gear system with a bearing arrangement, allowing for efficient operation. The pedal driven propulsion device is portable, easily disassembled for transport and storage, and can be adjusted for different watercraft.

Career Highlights

Throughout his career, Robert M Lewis has worked with various companies, including C.a.s.t. Minerals, Inc. His innovative spirit and dedication to improving technology have made a significant impact in his field.

Collaborations

Robert has collaborated with notable individuals such as William M Bradley and Robert L

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