Abstract: The present invention provides a conversion assembly for use in conjunction with a personal watercraft (PWC) which increases the buoyancy and stability of a PWC while protecting the motorist from the elements, wherein, the conversion assembly includes a collar assembly having a frame member and a buoyant foam reinforcement member operably coupled to an inflatable tube assembly for creating a personal water cruiser out of an existing PWC.

Abstract: A method and apparatus for incinerating combustible materials wherein the movement of the material particles is controlled as they are moved over an arrangement of grate sections during combustion in relation to particle density so that less dense particles travel faster than more dense particles to provide for increased combustion efficiency. The grate sections are arranged in adjacent groups and in an alined, downstepped succession. Each grate section has a downwardly inclined, upper support surface and a reciprocating pusher block is moved an adjustable distance over an inlet end portion of the upper support surface of each pusher block to impart moving forces through the material in a pushing stroke that is substantially shorter than the full travel distance of the material along the associated grate section.