Patents by Inventor Jean Walker

Jean Walker 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).

  • Publication number: 20120220658
    Abstract: The present invention is a method for treating sepsis or septic shock using Lipoxin A4.
    Type: Application
    Filed: October 21, 2010
    Publication date: August 30, 2012
    Applicant: University of Medicine and Dentistry of New Jersey
    Inventors: Kingsley Yin, Ana Rodriguez, Bernd W. Spur, Jean Walker
  • Patent number: 8154373
    Abstract: In a circuit breaker, a current transformer for fault powering trip unit electronics and sensing low currents and high currents includes a core with solid laminations and gapped laminations to sense a wide range of currents from locked-rotor currents to high, instantaneous short-circuit currents in a single current transformer. The current transformer can also fault power trip unit electronics without requiring an additional current transformer. The operating range of the circuit breaker is significantly enhanced compared to existing breakers that can sense only a limited range of current levels.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: April 10, 2012
    Assignee: Schneider Electric USA, Inc.
    Inventors: Susan Jean Walker Colsch, David Joseph Dunne, Kevin John Malo, Richard Allen Studer, II
  • Patent number: 7869170
    Abstract: A time-synchronized trip implementation for a motor circuit protector (MCP) having a reconfigurable microcontroller. The microcontroller causes a power supply to, be charged for an initial time period during a charging mode. An onboard comparator is configured for a predetermined self-protection level of the MCP, and fault currents that exceed the comparator's threshold will directly drive a solenoid to trip the MCP. The microcontroller reconfigures the comparator's threshold to both measure and charge the power supply toward a stored energy trip voltage, which will charge quickly when high fault currents are present. As a result, self-protection is not compromised. After the trip voltage is reached, the microcontroller reconfigures the onboard comparator's threshold for self-protection trip levels. When a trip event occurs in this mode, stored energy trip activation occurs.
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: January 11, 2011
    Inventors: Susan Jean Walker Colsch, William Davison, Kevin John Malo, Steve M. Meehleder, Richard Allen Studer, II
  • Patent number: 7788055
    Abstract: A method and system to calibrate a motor circuit protection device is disclosed. An example method calibrates a signal chain of a circuit breaker. The signal chain includes a current transformer, a burden resistor, a stored energy circuit and a controller. The circuit breaker includes a memory coupled to the controller. A calibration instruction routine is written in a first location of the memory. A test current is injected in the circuit breaker signal chain. The test current peak of the test current in the circuit breaker signal chain is measured. Data indicative of the test current peak is stored in a second location of the memory. The test current peak data is read from the second location of the memory. The test current peak data is compared with nominal current data related to the signal chain remotely from the circuit breaker. A calibration factor is determined based on the comparison.
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: August 31, 2010
    Assignee: Square D Company
    Inventors: Susan Jean Walker Colsch, William Davison, David Joseph Dunne, Kevin John Malo, Steve M. Meehleder, Ryan James Moffitt, Richard Allen Studer, II, Gary Michael Stumme
  • Publication number: 20080215278
    Abstract: A method and system to calibrate a motor circuit protection device is disclosed. An example method calibrates a signal chain of a circuit breaker. The signal chain includes a current transformer, a burden resistor, a stored energy circuit and a controller. The circuit breaker includes a memory coupled to the controller. A calibration instruction routine is written in a first location of the memory. A test current is injected in the circuit breaker signal chain. The test current peak of the test current in the circuit breaker signal chain is measured. Data indicative of the test current peak is stored in a second location of the memory. The test current peak data is read from the second location of the memory. The test current peak data is compared with nominal current data related to the signal chain remotely from the circuit breaker. A calibration factor is determined based on the comparison.
    Type: Application
    Filed: July 2, 2007
    Publication date: September 4, 2008
    Inventors: Susan Jean Walker Colsch, William Davison, David Joseph Dunne, Kevin John Malo, Steve M. Meehleder, Ryan James Moffitt, Richard Allen Studer, Gary Michael Stumme
  • Publication number: 20080012667
    Abstract: A time-synchronized trip implementation for a motor circuit protector (MCP) having a reconfigurable microcontroller. The microcontroller causes a power supply to, be charged for an initial time period during a charging mode. An onboard comparator is configured for a predetermined self-protection level of the MCP, and fault currents that exceed the comparator's threshold will directly drive a solenoid to trip the MCP. The microcontroller reconfigures the comparator's threshold to both measure and charge the power supply toward a stored energy trip voltage, which will charge quickly when high fault currents are present. As a result, self-protection is not compromised. After the trip voltage is reached, the microcontroller reconfigures the onboard comparator's threshold for self-protection trip levels. When a trip event occurs in this mode, stored energy trip activation occurs.
    Type: Application
    Filed: July 2, 2007
    Publication date: January 17, 2008
    Inventors: Susan Jean Walker Colsch, William Davison, Kevin John Malo, Steve M. Meehleder, Richard Allen Studer
  • Publication number: 20080012677
    Abstract: In a circuit breaker, a current transformer for fault powering trip unit electronics and sensing low currents and high currents includes a core with solid laminations and gapped laminations to sense a wide range of currents from locked-rotor currents to high, instantaneous short-circuit currents in a single current transformer. The current transformer can also fault power trip unit electronics without requiring an additional current transformer. The operating range of the circuit breaker is significantly enhanced compared to existing breakers that can sense only a limited range of current levels.
    Type: Application
    Filed: June 15, 2007
    Publication date: January 17, 2008
    Inventors: Susan Jean Walker Colsch, David Joseph Dunne, Kevin John Malo, Richard Allen Studer