Patents by Inventor Mark J. Obermeier

Mark J. Obermeier 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: 6097192
    Abstract: A method of initializing short time and groundfault protection heat index accumulators to compensate for current flow during the time interval between the application of phase current and application of current measurement and protection algorithms in an electronic trip unit is presented. The electronic trip unit includes a microcontroller and associated ROM having trip unit application code, e.g., main functionality firmware, including initializing parameters, and boot code, stored therein and EEPROM having operational parameter code, e.g., encoded enumerations for parameters such as 50/60 Hz., UL/ANSI/IEC, etc., stored therein. The time internal comprises first and second time components.
    Type: Grant
    Filed: March 5, 1998
    Date of Patent: August 1, 2000
    Assignee: General Electric Company
    Inventors: Mark J. Obermeier, Paul H. Singer, Michael R. Koller
  • Patent number: 6065148
    Abstract: A method for error detection and correction in an electronic trip unit is presented. The electronic trip unit includes a ROM having trip unit application code, e.g., main functionality firmware, including initializing parameters, and boot code, stored therein and an EEPROM having operational parameter code, e.g., encoded enumerations for parameters such as 50/60 Hz., UL/ANSI/IEC, ect., stored therein The integrity of the code is monitored using CRC or checksum. Corrupted data is recovered by using encoded enumerations with at least two repetitive bit patterns of appropriate width. Encoding enumerations with greater that two repetitive bit patterns allows for each enumerated value to be recovered from any single bit corruption by replacing the corrupted pattern with the matching pattern. Alternatively, with a plurality of encoded enumeration groups stored in the EEPROM a corrupted enumeration can be properly selected and corrected by cross correlating the enumeration groups.
    Type: Grant
    Filed: March 5, 1998
    Date of Patent: May 16, 2000
    Assignee: General Electric Company
    Inventors: Mark J. Obermeier, Alan J. Messerli, Paul H. Singer
  • Patent number: 5974545
    Abstract: The idea behind this algorithm is to provide prioritized data in an optimal sequence to expedite initialization/activation of ordered processes necessary to effect circuit protection functionality from a circuit breaker trip unit.
    Type: Grant
    Filed: September 22, 1997
    Date of Patent: October 26, 1999
    Assignee: General Electric Company
    Inventors: Mark J. Obermeier, Paul H. Singer, Alan J. Messerli
  • Patent number: 5760556
    Abstract: A motor controller unit of the type providing optimum motor operation and protection is configured to determine phase rotation correction during motor start-up without stopping and re-configuring. The effects of heat on the squirrel cage (amortisseur) and motor field windings are accurately and automatically determined on a continuing basis to deter nuisance trip occurrence during motor start and restart operations and to prevent damage to the motor windings during continuous motor operation, respectively.
    Type: Grant
    Filed: January 26, 1996
    Date of Patent: June 2, 1998
    Assignee: General Electric Company
    Inventors: James Wallace Hamilton, Jr., Lisa E. Rosner, Mark J. Obermeier