Patents by Inventor Bruce D. Rohn

Bruce D. Rohn 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).

  • Patent number: 5553661
    Abstract: A vehicle heating and air conditioning system has multiple zones and a manual comfort selector for each zone. The setting for each zone is adjustable for the effects of sun intensity and sun position. A Global Position System (GPS) navigation system provides heading, longitude, latitude, time and date data from which sun position relative to the vehicle is determined, and solar sensors provide solar intensity information. An empirical table for each zone addressed by sun elevation and relative azimuth contains solar illumination factors which, along with solar intensity factors, afford an adjustment to the comfort settings, thus altering the temperature and/or flow rate of air supplied to each zone. Alternatively, in the absence of a GPS receiver, a magnetic compass is used for heading data, geographic region data is entered manually, and an on-board clock furnishes the time and date.
    Type: Grant
    Filed: October 23, 1995
    Date of Patent: September 10, 1996
    Assignee: Delco Electronics Corporation
    Inventors: David G. Beyerlein, Bruce D. Rohn
  • Patent number: 4543936
    Abstract: Sync pulses are developed in timed relation to the occurrence of an ignition event in a specified cylinder of an engine employing a concurrent discharge ignition system. Ignition voltages for compression and exhaust cylinders are distinguished on the basis of the voltage magnitudes thereof.
    Type: Grant
    Filed: September 17, 1984
    Date of Patent: October 1, 1985
    Assignee: General Motors Corporation
    Inventors: Robert F. Gardner, Bruce D. Rohn