Patents by Inventor Douglas W. Durnil

Douglas W. Durnil 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).

  • Multi-zone indoor climate control and a method of using the same
    Patent number: 11105529
    Abstract: A system and method of conditioning air within a multi-zone system using a controller in communication with at least one sensor located within at least one of a plurality of zones, the method comprising the steps of: operating the at least one sensor to measure at least one environmental condition within at least one of the plurality of zones, identifying which, if any, of the plurality of zones is occupied, determining whether a demand condition exists within at least one occupied zone, calculating the difference between an actual environmental condition and a desired environmental condition within the plurality of zones to create a zone demand value if a demand condition exists in two or more occupied zones, and determining whether a cumulative zone demand value is equal to a zone balance point value.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: August 31, 2021
    Assignee: CARRIER CORPORATION
    Inventors: Rajendra K Shah, Douglas W. Durnil
  • MULTI-ZONE INDOOR CLIMATE CONTROL AND A METHOD OF USING THE SAME
    Publication number: 20150330656
    Abstract: A system and method of conditioning air within a multi-zone system using a controller in communication with at least one sensor located within at least one of a plurality of zones, the method comprising the steps of: operating the at least one sensor to measure at least one environmental condition within at least one of the plurality of zones, identifying which, if any, of the plurality of zones is occupied, determining whether a demand condition exists within at least one occupied zone, calculating the difference between an actual environmental condition and a desired environmental condition within the plurality of zones to create a zone demand value if a demand condition exists in two or more occupied zones, and determining whether a cumulative zone demand value is equal to a zone balance point value.
    Type: Application
    Filed: April 1, 2015
    Publication date: November 19, 2015
    Inventors: Rajendra K. Shah, Douglas W. Durnil