Other

C.a.s.t. Minerals, Inc.

Robert M Lewis

Riley D Robbins

Robert L Carnahan

Frank A Elk

William M Lewis

William M Bradley

There is provided 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 and fine ash products. After 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 are de-watered to form the block sand product. The middling size materials are segregated into low, middle and high specific gravity materials by the use of 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 are de-watered to form a concrete or mid-size sand product. Fines from the hydraulic classifier are screened to form the fine ash product.

Multi-mineral/ash benefication process and apparatus

A pedal driven propulsion device in the form of an outboard motor for a watercraft, such as a canoe is disclosed. The pedal driven propulsion device having a drive assembly and a propeller assembly with an upper portion and a lower portion. A steering assembly, for steering the watercraft, is coupled to the drive assembly at the upper portion and to a propeller rotatively disposed at the lower portion for providing propulsion to the watercraft when the drive assembly is activated by a human. A mounting assembly for mounting between the gunwales of the watercraft is provided. The lower portion and the upper portion of the propeller assembly have a bevel gear system with a bearing arrangement. The lower and upper portions are cooperatively and driveably engaged with each other by a propeller drive rod. A tilting mechanism is provided to allow the propeller assembly to be tilted. The pedal driven propulsion device is removably and adjustably mountable between the gunwales of the canoe and is portable and is readily disassembled for transporting and storage.

Pedal driven propulsion device

A particle separator comprising a liquid column having a liquid admission point located above the column lower end. Coarse size particles migrate downwardly to a hopper in the columns lower end. Carrier liquid flows upwardly through the column; fine size particles are removed at different levels along the liquid path.

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Candler, NC, United States of America

Robert M Lewis