Patents Assigned to EaglePicher Technologies
  • Patent number: 7928691
    Abstract: A system and method for charging a rechargeable, or secondary, battery including a series string of battery cells, a topology of charging sources that selectively provides charging current to battery cells that need to be charged, but avoids overcharging battery cells that are already charged above a predetermined voltage threshold. Based on individual cell voltage measurements, the charging current is controlled in a manner to direct charging current to the battery cell(s) needing charge until these cells are fully charged, and bypasses battery cells that are fully charged or become fully charged.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: April 19, 2011
    Assignee: EaglePicher Technologies
    Inventors: William B Studyvin, Eric Coatney, Tim Pennock, Phillip Shimp, Greg Miller
  • Patent number: 7875088
    Abstract: The present invention is directed at a system for automatically manufacturing thermal batteries. In the present invention, thermal batteries are manufactured using a press system, a stacking system and an enclosing system. The present invention uses a tracking, storage, and/or retrieval system to track various components used in the manufacturing process to improve manufacturing quality and to track the various components throughout the manufacturing process.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: January 25, 2011
    Assignee: EaglePicher Technologies
    Inventors: Graham Dixon, Mark Hart, Ola Pettersson, Chad Sneath
  • Patent number: 7871447
    Abstract: An automated system and method for manufacturing a thermal battery is disclosed. In an exemplary embodiment, the system comprises a press system, a stacking system, and an enclosing system to automate the manufacturing process of thermal batteries. A method of manufacturing a thermal battery using the system is also disclosed. An automated tracking, storage, and retrieval system for pellets used in the manufacturing process and a pellet pairing system are also disclosed.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: January 18, 2011
    Assignee: EaglePicher Technologies
    Inventors: Graham Dixon, Mark Hart, Ola Pettersson, Chad Sneath
  • Patent number: 7868777
    Abstract: The invention provides a system and battery including a state-of-charge indicator (SOCI) to monitor and display the amount of charge within the battery. The SOCI is capable of operating in a hibernate mode, an active mode, and/or a sleep mode. The battery may be manufactured, shipped and/or stored with the SOCI operating in a power-saving hibernate mode. The SOCI may exit the hibernate mode and begin operating in active mode if a physical key connected to the battery is removed. In addition, the SOCI may operate in a sleep mode while the battery is not being used to conserve power. Furthermore, the invention provides a method of making a battery including a SOCI to monitor and display the state of charge of the battery.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: January 11, 2011
    Assignee: EaglePicher Technologies
    Inventors: Gregg C Bruce, Christo Brand
  • Patent number: 7825629
    Abstract: A system and method for charging a rechargeable, or secondary, battery including a series string of cells, includes a topology of charging sources that selectively provides charging current to cells that need to be charged, but avoids overcharging cells that are already charged above a predetermined voltage threshold. Based on individual cell voltage measurements, the charging current is controlled in a manner to direct charging current to the battery cell(s) needing charge until these cells are fully charged, and by-passes battery cells that are fully charged or become fully charged.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: November 2, 2010
    Assignee: EaglePicher Technologies
    Inventors: William B. Studyvin, Eric Coatney, Tim Pennock, Phillip Shimp, Greg Miller
  • Patent number: 7826197
    Abstract: A modular energy storage device comprises a customer-defined parameter, such as electrical capacity, a can that has a dimension based on the customer-defined parameter, an electrode package that has properties based on the customer-defined parameter, and a header that has a configuration that is not dependent on the customer-defined parameter. A method for producing the modular energy storage device comprises generating a standardized energy storage device configuration, receiving a customer-defined parameter, and modifying the standardized energy storage device configuration according to the customer-defined parameter. The step of modifying the standardized energy storage device configuration comprises the steps of modifying the electrode package without modifying the location of the current collectors, modifying the length of the can according to the customer-defined parameter, and using the header already developed to complete construction of the modular energy storage device.
    Type: Grant
    Filed: November 3, 2007
    Date of Patent: November 2, 2010
    Assignee: EaglePicher Technologies
    Inventors: Scott Gramm, Clay Braziller, Grant Farrell
  • Patent number: 7821230
    Abstract: A system and method for charging a rechargeable, or secondary, battery including a series string of cells, includes a topology of charging sources that selectively provides charging current to cells that need to be charged, but avoids overcharging cells that are already charged above a predetermined voltage threshold. Based on individual cell voltage measurements, the charging current is controlled in a manner to direct charging current to the battery cell(s) needing charge until these cells are fully charged, and by-passes battery cells that are fully charged or become fully charged.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: October 26, 2010
    Assignee: EaglePicher Technologies
    Inventors: William B. Studyvin, Eric Coatney, Tim Pennock, Phillip Shimp, Greg Miller