Patents by Inventor William Paul Boulet

William Paul Boulet has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4114289
    Abstract: A fuel dryer system for waste fuel boilers, such as for example those in the sugar cane processing industry where bagasse is used as a primary fuel, in which the dryer comprises an assembled, enclosed, vertical dryer structure of basically cylindrical shape through which hot drying gases flow with a conical materials collecting hopper and bottom discharge, having alternating conical-shaped rotating and fixed materials trays over which the materials (e.g. bagasse) to be dried move in a net direction from top to bottom (note Figure 1). Adjustable wipers are provided with the conical materials trays, with access portholes at each tray level. In the sugar cane boiler system the stack gases from the boiler are used for the hot drying gases (note Figure 5).
    Type: Grant
    Filed: June 29, 1976
    Date of Patent: September 19, 1978
    Inventor: William Paul Boulet
  • Patent number: 3976018
    Abstract: A fuel dryer system for waste fuel boilers, such as for example those in the sugar cane processing industry where bagasse is used as a primary fuel, in which the dryer comprises an assembled, enclosed, vertical dryer structure of basically cylindrical shape through which hot drying gases flow with a conical materials collecting hopper and bottom discharge, having alternating conical-shaped rotating and fixed materials trays over which the materials (e.g.bagasse) to be dried move in a net direction from top to bottom (note FIG. 1). Adjustable wipers are provided with the conical materials trays, with access portholes at each tray level. In the sugar cane boiler system the stack gases from the boiler are used for the hot drying gases note (FIG. 5).
    Type: Grant
    Filed: February 14, 1975
    Date of Patent: August 24, 1976
    Inventor: William Paul Boulet