Patents by Inventor Engelbert Hetzmannseder

Engelbert Hetzmannseder 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: 9030795
    Abstract: A method provides electronic overload protection having a thermal trip level. The method executes a function by a processor; provides the electronic overload protection by the function executed by the processor; and adjusts the thermal trip level by the function executed by the processor in order to mimic adjusting a physical thermal characteristic of a thermal time constant of a fixed mechanical system.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: May 12, 2015
    Assignee: Eaton Corporation
    Inventors: Robert T. Elms, Sandy O. Jimenez, Engelbert Hetzmannseder
  • Publication number: 20140177118
    Abstract: A method provides electronic overload protection having a thermal trip level. The method executes a function by a processor; provides the electronic overload protection by the function executed by the processor; and adjusts the thermal trip level by the function executed by the processor in order to mimic adjusting a physical thermal characteristic of a thermal time constant of a fixed mechanical system.
    Type: Application
    Filed: December 21, 2012
    Publication date: June 26, 2014
    Applicant: EATON CORPORATION
    Inventors: ROBERT T. ELMS, SANDY O. JIMENEZ, ENGELBERT HETZMANNSEDER
  • Patent number: 8514531
    Abstract: A trip unit includes a current sensor to sense a value of current flowing through a conductor, a circuit to receive first frequency pulses having a number of first frequencies from the conductor, a transmitter to transmit second frequency pulses having a second frequency different than the first frequencies to the conductor, and a processor having a routine. The routine inputs the sensed value of current from the current sensor, determines if the sensed value of current exceeds a predetermined value and responsively causes the transmitter to transmit the second frequency pulses having the second frequency to the conductor, monitors within a predetermined time after determining that the sensed value of current exceeds the predetermined value if a number of the first frequency pulses having the number of first frequencies is received by the circuit, and responsively delays outputting a trip signal, and, otherwise, immediately outputs the trip signal.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: August 20, 2013
    Assignee: Eaton Corporation
    Inventors: Xin Zhou, Engelbert Hetzmannseder
  • Patent number: 8004418
    Abstract: A system includes a number of electrical switching apparatus having separable contacts, an operating mechanism structured to open and close the separable contacts, a trip mechanism cooperating with the operating mechanism to trip open the separable contacts, a test circuit structured to test the trip mechanism and determine a failure to protect condition thereof, and a communication circuit structured to communicate the failure to protect condition. The system also includes an electrical distribution panel having a housing housing the number of electrical switching apparatus, and a communication interface structured to receive the failure to protect condition from the communication circuit and annunciate the failure to protect condition.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: August 23, 2011
    Assignee: Eaton Corporation
    Inventors: Engelbert Hetzmannseder, William J. Murphy, Robert T. Elms
  • Publication number: 20100060469
    Abstract: A system includes a number of electrical switching apparatus having separable contacts, an operating mechanism structured to open and close the separable contacts, a trip mechanism cooperating with the operating mechanism to trip open the separable contacts, a test circuit structured to test the trip mechanism and determine a failure to protect condition thereof, and a communication circuit structured to communicate the failure to protect condition. The system also includes an electrical distribution panel having a housing housing the number of electrical switching apparatus, and a communication interface structured to receive the failure to protect condition from the communication circuit and annunciate the failure to protect condition.
    Type: Application
    Filed: November 5, 2008
    Publication date: March 11, 2010
    Inventors: Engelbert Hetzmannseder, William J. Murphy, Robert T. Elms
  • Patent number: 7253640
    Abstract: A circuit breaker for locating an arc fault for a protected circuit includes separable contacts interrupting the protected circuit and an arc fault detector determining an arc fault in the protected circuit. An analog to digital converter circuit measures a value of peak arc current at the arc fault detector. Another analog to digital converter circuit provides a peak line-to-neutral voltage. A memory provides an arc voltage operatively associated with the value of peak current. A microprocessor determines a distance from the arc fault detector to the arc fault from the value of peak arc current, a wire resistance per unit length or a wire conductance per unit length, the peak line-to-neutral voltage and the arc voltage.
    Type: Grant
    Filed: January 13, 2003
    Date of Patent: August 7, 2007
    Assignee: Eaton Corporation
    Inventors: Joseph C. Engel, Engelbert Hetzmannseder, Kevin L. Parker, Peter J. Theisen, Joseph C. Zuercher
  • Patent number: 6967549
    Abstract: A modular asynchronous contactor assembly includes a contactor for each phase or pole of an electrical device. The contactor assembly is applicable as both a switching device and an isolation or load protection device. As such, each contactor is constructed so that each includes multiple contact assemblies. Moreover, the contactors within a single contactor assembly or housing can be independently controlled so that the contacts of one contactor can be opened without opening the contacts of the other contactors of the contactor assembly.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: November 22, 2005
    Assignee: Eaton Corporation
    Inventors: Xin Zhou, Michael T. Little, James Kinsella, Chris Wieloch, Engelbert Hetzmannseder
  • Patent number: 6956728
    Abstract: A modular asynchronous contactor assembly includes a contactor for each phase or pole of an electrical device. The contactor assembly is applicable as both a switching device and an isolation or load protection device. As such, each contactor is constructed so that each includes multiple contact assemblies. Moreover, the contactors within a single contactor assembly or housing can be independently controlled so that the contacts of one contactor can be opened without opening the contacts of the other contactors of the contactor assembly.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: October 18, 2005
    Assignee: Eaton Corporation
    Inventors: Xin Zhou, Michael T. Little, James Kinsella, Chris Wieloch, Engelbert Hetzmannseder
  • Patent number: 6943654
    Abstract: A modular asynchronous contactor assembly includes a contactor for each phase or pole of an electrical device. The contactor assembly is applicable as both a switching device and an isolation or load protection device. As such, each contactor is constructed so that each includes multiple contact assemblies. Moreover, the contactors within a single contactor assembly or housing can be independently controlled so that the contacts of one contactor can be opened without opening the contacts of the other contactors of the contactor assembly.
    Type: Grant
    Filed: November 29, 2004
    Date of Patent: September 13, 2005
    Assignee: Eaton Corporation
    Inventors: Xin Zhou, Michael T. Little, James Kinsella, Chris Wieloch, Engelbert Hetzmannseder
  • Publication number: 20050162245
    Abstract: A modular asynchronous contactor assembly includes a contactor for each phase or pole of an electrical device. The contactor assembly is applicable as both a switching device and an isolation or load protection device. As such, each contactor is constructed so that each includes multiple contact assemblies. Moreover, the contactors within a single contactor assembly or housing can be independently controlled so that the contacts of one contactor can be opened without opening the contacts of the other contactors of the contactor assembly.
    Type: Application
    Filed: March 18, 2005
    Publication date: July 28, 2005
    Inventors: Xin Zhou, Michael Little, James Kinsella, Chris Wieloch, Engelbert Hetzmannseder
  • Publication number: 20050073787
    Abstract: A modular asynchronous contactor assembly includes a contactor for each phase or pole of an electrical device. The contactor assembly is applicable as both a switching device and an isolation or load protection device. As such, each contactor is constructed so that each includes multiple contact assemblies. Moreover, the contactors within a single contactor assembly or housing can be independently controlled so that the contacts of one contactor can be opened without opening the contacts of the other contactors of the contactor assembly.
    Type: Application
    Filed: November 29, 2004
    Publication date: April 7, 2005
    Inventors: Xin Zhou, Michael Little, James Kinsella, Chris Wieloch, Engelbert Hetzmannseder
  • Patent number: 6853525
    Abstract: A vacuum arc interrupter that includes a vacuum chamber assembly and a pressure chamber assembly. The vacuum chamber assembly includes a first, fixed contact disposed within the vacuum chamber and a second, movable contact disposed within the vacuum chamber. A rod is coupled to, and in electrical communication with, the second contact. The rod is structured to move between a first position wherein the second contact is spaced from the first contact and a second position where the first and second contacts are in electrical communication with each other. The pressure chamber assembly has a gas generation device and a cylindrical barrel defining a pressure chamber with a first end and a second end. The barrel second end has an opening. A piston assembly is disposed in the pressure chamber and coupled to the rod, which passes through the second, open end. The gas generation device is coupled to the pressure chamber assembly and in fluid communication with the barrel and the piston assembly.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: February 8, 2005
    Assignee: Eaton Corporation
    Inventors: Engelbert Hetzmannseder, Mary Jo Johnson Vander Heiden, Francis Christopher Edrozo, Mark Allan Juds
  • Patent number: 6813127
    Abstract: A vacuum arc interrupter that includes a vacuum chamber assembly and a pressure chamber assembly. The vacuum chamber assembly has a first conductor coupled to a power line, a non-conductive housing and a seal cup. The pressure chamber assembly has a second conductor coupled to a ground, a pressure chamber and a bullet assembly. The pressure chamber assembly is disposed adjacent to the vacuum chamber assembly. The bullet assembly is disposed in the pressure chamber and is structured to move between a first position and a second position. The bullet assembly has a metal lance with a blade portion. The blade portion is structured to puncture the seal cup.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: November 2, 2004
    Assignee: Eaton Corporation
    Inventors: Francis Christopher Edrozo, Engelbert Hetzmannseder, Mark Allan Juds, Mary Jo Johnson Vander Heiden, Paul G. Slade, Erik Dannel Taylor, Benjamin Alex Rosenkrans
  • Publication number: 20040169976
    Abstract: A modular asynchronous contactor assembly includes a contactor for each phase or pole of an electrical device. The contactor assembly is applicable as both a switching device and an isolation or load protection device. As such, each contactor is constructed so that each includes multiple contact assemblies. Moreover, the contactors within a single contactor assembly or housing can be independently controlled so that the contacts of one contactor can be opened without opening the contacts of the other contactors of the contactor assembly.
    Type: Application
    Filed: February 28, 2003
    Publication date: September 2, 2004
    Inventors: Xin Zhou, Michael T. Little, James Kinsella, Chris Wieloch, Engelbert Hetzmannseder
  • Publication number: 20040136124
    Abstract: A circuit breaker for locating an arc fault for a protected circuit includes separable contacts interrupting the protected circuit and an arc fault detector determining an arc fault in the protected circuit. An analog to digital converter circuit measures a value of peak arc current at the arc fault detector. Another analog to digital converter circuit provides a peak line-to-neutral voltage. A memory provides an arc voltage operatively associated with the value of peak current. A microprocessor determines a distance from the arc fault detector to the arc fault from the value of peak arc current, a wire resistance per unit length or a wire conductance per unit length, the peak line-to-neutral voltage and the arc voltage.
    Type: Application
    Filed: January 13, 2003
    Publication date: July 15, 2004
    Inventors: Joseph C. Engel, Engelbert Hetzmannseder, Kevin L. Parker, Peter J. Theisen, Joseph C.; Zuercher
  • Publication number: 20040027749
    Abstract: Arcing faults in dc electric power systems are detected by apparatus which responds to a predetermined drop either in voltage across, or current drawn by, a dc load. The voltage and current drops can be measured values or scaled to the source voltage. In another arrangement, the load current is interrupted momentarily when a step decrease in current is detected. If the dc current does not return, within a predetermined margin, to the decreased value before interruption, arcing is indicated. In a third embodiment, drift of the load current following detection of a step decrease, either upward toward a short or downward toward an open circuit, is taken as an indication of arcing.
    Type: Application
    Filed: May 13, 2003
    Publication date: February 12, 2004
    Inventors: Joseph C. Zuercher, Jerome K. Hastings, Engelbert Hetzmannseder, John B. Pardee, Charles J. Tennies
  • Publication number: 20030231448
    Abstract: A vacuum arc interrupter that includes a vacuum chamber assembly and a pressure chamber assembly. The vacuum chamber assembly has a first conductor coupled to a power line, a non-conductive housing and a seal cup. The pressure chamber assembly has a second conductor coupled to a ground, a pressure chamber and a bullet assembly. The pressure chamber assembly is disposed adjacent to the vacuum chamber assembly. The bullet assembly is disposed in the pressure chamber and is structured to move between a first position and a second position. The bullet assembly has a metal lance with a blade portion. The blade portion is structured to puncture the seal cup.
    Type: Application
    Filed: June 14, 2002
    Publication date: December 18, 2003
    Inventors: Francis Christopher Edrozo, Engelbert Hetzmannseder, Mark Allan Juds, Mary Jo Johnson Vander Heiden, Paul G. Slade, Erik Dannel Taylor, Benjamin Alex Rosenkrans
  • Publication number: 20030231452
    Abstract: A vacuum arc interrupter that includes a vacuum chamber assembly and a pressure chamber assembly. The vacuum chamber assembly includes a first, fixed contact disposed within the vacuum chamber and a second, movable contact disposed within the vacuum chamber. A rod is coupled to, and in electrical communication with, the second contact. The rod is structured to move between a first position wherein the second contact is spaced from the first contact and a second position where the first and second contacts are in electrical communication with each other. The pressure chamber assembly has a gas generation device and a cylindrical barrel defining a pressure chamber with a first end and a second end. The barrel second end has an opening. A piston assembly is disposed in the pressure chamber and coupled to the rod, which passes through the second, open end. The gas generation device is coupled to the pressure chamber assembly and in fluid communication with the barrel and the piston assembly.
    Type: Application
    Filed: June 14, 2002
    Publication date: December 18, 2003
    Inventors: Engelbert Hetzmannseder, Mary Jo Johnson Vander Heiden, Francis Christopher Edrozo, Mark Allan Juds
  • Publication number: 20030231439
    Abstract: A vacuum arc interrupter bullet assembly that includes a piston body having a first side and a second side and a lance made from a conductive material having an elongated body with a first end and a second end. The lance first end is tapered to a point and the lance second end is coupled to the piston body second side. The piston body first side has a surface that is either concave or convex.
    Type: Application
    Filed: June 14, 2002
    Publication date: December 18, 2003
    Inventors: Mark Allan Juds, Edward Louis Wellner, Francis Christopher Edrozo, Mary Jo Johnson Vander Heiden, Engelbert Hetzmannseder
  • Patent number: 6356423
    Abstract: Electrical equipment is safeguarded from damage due to faults by a circuit that provides several levels of protection. A semiconductor switch and a current sensor are placed in series with the electrical equipment. When the current to the equipment exceeds a first threshold for a predefined period of time, the semiconductor switch is rendered non-conductive until the circuit is specifically reset. When the current to the equipment exceeds a greater second threshold, a pulsed signal alternately places the semiconductor switch in conductive and non-conductive states so that the average current applied to the equipment is within an acceptable level. Should the current exceed an even greater third threshold, the semiconductor switch is immediately rendered non-conductive until the circuit is manually reset.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: March 12, 2002
    Assignee: Eaton Corporation
    Inventors: Jerome Kenneth Hastings, Karen Sjaarda Bland, James Edward Hansen, Scott Anderson Reid, David James Gritter, Edward Louis Wellner, Engelbert Hetzmannseder, William Edward Berkopec, Birger Pahl, Thomas Edward Strunsee