Patents by Inventor Teofil Barjuca

Teofil Barjuca 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: 9039275
    Abstract: Disclosed herein are methods of preventing freezing of relays in electrical components operated in specific atmospheric conditions. One such method described herein comprises monitoring a temperature of a relay with a thermocouple located on a contact of the relay while monitoring ambient temperature within the relay. Operation of the electrical component is simulated in a sub-zero temperature and high humidity condition. A freeze potential of the relay is determined by plotting a temperature cross-over curve, wherein both the ambient temperature and the contact temperature are plotted during the operation and cool down period. If the high freeze potential is determined, one or both of the relay and the electrical component are modified with a modification configured to decrease the high freeze potential.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: May 26, 2015
    Assignee: Nissan North America, Inc.
    Inventors: Greg Szleszynski, Adrian Dobre, Teofil Barjuca, Ryutaro Mine, Jim Beach, Adam Wehner, Tim Balogh
  • Publication number: 20130181732
    Abstract: Disclosed herein are methods of preventing freezing of relays in electrical components operated in specific atmospheric conditions. One such method described herein comprises monitoring a temperature of a relay with a thermocouple located on a contact of the relay while monitoring ambient temperature within the relay. Operation of the electrical component is simulated in a sub-zero temperature and high humidity condition. A freeze potential of the relay is determined by plotting a temperature cross-over curve, wherein both the ambient temperature and the contact temperature are plotted during the operation and cool down period. If the high freeze potential is determined, one or both of the relay and the electrical component are modified with a modification configured to decrease the high freeze potential.
    Type: Application
    Filed: January 13, 2012
    Publication date: July 18, 2013
    Applicant: NISSAN NORTH AMERICA, INC.
    Inventors: Greg Szleszynski, Adrian Dobre, Teofil Barjuca, Ryutaro Mine, Jim Beach, Adam Wehner, Tim Balogh
  • Publication number: 20130181059
    Abstract: Disclosed herein are embodiments of testing apparatus used to prevent freezing of relays in electrical components, particularly electrical components used in vehicles. One embodiment of a testing apparatus comprises a chamber with temperature control configured to control a temperature of an internal atmosphere of the chamber and a humidifier in fluid communication with the internal atmosphere of the chamber configured to supply humidified air to the internal atmosphere. A sealable opening in a wall of the chamber is configured to pass a wire harness from external the chamber to inside the chamber while maintaining a sealed environment within the chamber. The temperature control is configured to maintain a sub-zero temperature in the internal atmosphere while the humidifier maintains a saturated internal atmosphere.
    Type: Application
    Filed: January 13, 2012
    Publication date: July 18, 2013
    Applicant: NISSAN NORTH AMERICA, INC.
    Inventors: Greg Szleszynski, Adrian Dobre, Teofil Barjuca, Adam Wehner, Ryutaro Mine, Tim Balogh, Jim Beach