Patents by Inventor Grant D. Maxwell

Grant D. Maxwell 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).

  • Lightweight adjustable track "power dozer"
    Patent number: 5794710
    Abstract: This invention is directed to a lightweight adjustable track earth moving device. More particularly this invention is directed to an improved efficient light-weight adjustable track earth moving device which can be attached at the front end of an endless track vehicle and used for efficiently moving earth from one location to another, for example, into a ditch or excavation.
    Type: Grant
    Filed: June 14, 1996
    Date of Patent: August 18, 1998
    Inventor: Grant D. Maxwell
  • Kiln with automatic control of heat distribution
    Patent number: 5179789
    Abstract: An improved direct or indirect fired drying kiln having a drying chamber, a burner for heating air, a ducting system in the drying chamber for distributing heated air, a fan for circulating heated air through the ducting system, and venting openings in the ducting system to release heated air to various zones of the drying chamber is provided. The kiln improvement involves providing temperature sensors in the drying chamber in communication with a system for automatically controlling and actuating the venting means in order to control the flow of heated air to each drying chamber zone to achieve any desired temperature distribution throughout the drying chamber. The system can also be operated manually.
    Type: Grant
    Filed: December 30, 1991
    Date of Patent: January 19, 1993
    Assignee: The COE Manufacturing Company (Canada), Inc.
    Inventors: Brian T. Stroud, Grant D. Maxwell, Ronald E. Rohachuk