Patents by Inventor Lorne Nelson

Lorne Nelson 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).

  • Thermostatic control without temperature droop using duty cycle control
    Patent number: 4817705
    Abstract: The present invention is a technique for thermostatic control of a temperature modifying apparatus such as a heating unit or an air conditioning unit. This technique involves measuring the ambient temperature, generating an error signal based upon the difference between a set point temperature and the measured ambient temperature, operating the temperature modifying apparatus according to the error signal, and adjusting the set point temperature based upon the time history of the error signal. In accordance with the preferred embodiment of the present invention, the temperature modifying apparatus is operated during the next cycle interval with a duty cycle proportional to the error signal at the start of the cycle interval.
    Type: Grant
    Filed: July 7, 1987
    Date of Patent: April 4, 1989
    Assignee: Honeywell Inc.
    Inventors: Michael R. Levine, Lorne Nelson
  • Thermostatic control without temperature droop using duty cycle control
    Patent number: 4759498
    Abstract: The present invention is a technique for thermostatic control of a temperature modifying apparatus such as a heating unit or an air conditioning unit. This technique involves measuring the ambient temperature, generating an error signal based upon the difference between a set point temperature and the measured ambient temperature, operating the temperature modifying apparatus according to the error signal, and adjusting the set point temperature based upon the time history of the error signal. In accordance with the preferred embodiment of the present invention, the temperature modifying apparatus is operated during the next cycle interval with a duty cycle proportional to the error signal at the start of the cycle interval.
    Type: Grant
    Filed: September 15, 1987
    Date of Patent: July 26, 1988
    Assignee: Honeywell Inc.
    Inventors: Michael R. Levine, Lorne Nelson, Thomas Beckey, James Russo