Patents by Inventor Donald T. Barnett

Donald T. Barnett 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).

  • Air intake heating method and device for internal combustion engines
    Patent number: 5094198
    Abstract: An air intake heating system and method for heating intake air for internal combustion engines is disclosed including a microprocessor based controller, intake manifold air temperature monitoring means, engine speed monitoring means, and electrical air heating elements actuated by the controller in response to various combinations of sensed engine speed, sensed intake manifold air temperature and sensed battery condition. Air intake heating is provided to assist cold weather starting of engines as well as for minimizing white smoke pollutants produced by diesel engines after starting of the engine and as required thereafter during engine operation.
    Type: Grant
    Filed: April 26, 1991
    Date of Patent: March 10, 1992
    Assignee: Cummins Electronics Company, Inc.
    Inventors: Paul M. Trotta, Paul J. Ebaugh, Donald T. Barnett