Patents by Inventor Richard R. Lavassaur

Richard R. Lavassaur 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).

  • Minimum airflow control
    Patent number: 4324358
    Abstract: In a central air conditioning system where airflow is regulated by bellows inflation which is controlled by a bleed-type thermostat, a second bleed which is controlled by a regulator is provided to insure a minimum flow for ventilation independent of cooling demand.
    Type: Grant
    Filed: July 2, 1980
    Date of Patent: April 13, 1982
    Assignee: Carrier Corporation
    Inventors: David Tulowiecki, Richard R. Lavassaur