Patents by Inventor Willi Breitenmoser

Willi Breitenmoser 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).

  • Method and device for sensor-controlled demand-controlled ventilation
    Patent number: 5803804
    Abstract: Air quality in a interior space is monitored by a sensor and, to determine air renewal demand, the sensor signal is compared with a normal or reference value. For demand controlled ventilation, a switching signal is triggered for changing the amount of outside air supplied when air renewal demand changes. A reference ventilation is performed daily, at a time of day when outside air quality is satisfactory, typically in the early morning hours. Measured quality of the air from the reference ventilation is used in setting or resetting the reference value, e.g. adaptively.
    Type: Grant
    Filed: February 7, 1997
    Date of Patent: September 8, 1998
    Assignee: Staefa Control System AG
    Inventors: Simon Meier, Willi Breitenmoser