Patents Assigned to Eveready Battery Company, Inc.
  • Housing for a sealed electrochemical cell
    Patent number: 8173284
    Abstract: An electrochemical cell with a collector assembly for sealing the open end of a cell container. The collector assembly includes a retainer and a contact spring with a peripheral flange, each having a central opening therein. A pressure release vent member disposed between the retainer and the peripheral flange of the contact spring seals the openings in the retainer and contact spring under normal conditions and ruptures to release pressure from within the cell when the internal pressure exceeds a predetermined limit.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: May 8, 2012
    Assignee: Eveready Battery Company, Inc.
    Inventors: James X Wu, Richard A Langan
  • LED lighting device
    Patent number: 8172430
    Abstract: A lighting device includes a housing, multiple light emitting diodes (LEDS), and multiple magnifier lenses. The multiple LEDS and the multiple magnifier lenses are located in the housing. Each of the magnifier lenses corresponds to a different one of the LEDS, and there are less magnifier lenses than LEDS. Each LED that has a corresponding magnifier lens is arranged with respect to its magnifier lens so that substantially all of the light emitted by the LED only traverses its corresponding magnifier lens. At least one of the LEDS emits light that does not traverse any of the multiple magnifier lenses.
    Type: Grant
    Filed: February 21, 2011
    Date of Patent: May 8, 2012
    Assignee: Eveready Battery Company, Inc.
    Inventor: David J Alessio
  • Flexible Thin Printed Battery and Device and Method of Manufacturing Same
    Publication number: 20120107666
    Abstract: A flat, flexible electrochemical cell is provided. The within invention describes various aspects of the flat, flexible electrochemical cell. A printed anode is provided that obviates the need for a discrete anode current collector, thereby reducing the size of the battery. An advantageous electrolyte is provided that enables the use of a metallic cathode current collector, thereby improving the performance of the battery. Printable gelled electrolytes and separators are provided, enabling the construction of both co-facial and co-planar batteries. Cell contacts are provided that reduce the potential for electrolyte creepage in the flat, flexible electrochemical cells of the within invention.
    Type: Application
    Filed: January 11, 2012
    Publication date: May 3, 2012
    Applicant: EVEREADY BATTERY COMPANY, INC.
    Inventors: John C. Bailey, Abdelkader Hilmi, Mark A. Schubert, Jing Zhang, Guanghong Zheng
  • Removal Of Impurities From Lithium-Iron Disulfide Electrochemical Cells
    Publication number: 20120100423
    Abstract: A lithium electrochemical cell, and a process for making the same, are disclosed. The cell includes a chelating agent that is specifically selected to remove impurities introduced to the cell by other component.
    Type: Application
    Filed: June 29, 2010
    Publication date: April 26, 2012
    Applicant: EVEREADY BATTERY COMPANY, INC.
    Inventor: Mark A. Schubert
  • Electrical appliance and charger
    Patent number: 8164304
    Abstract: An apparatus includes a charger (104) and a portable appliance such as a flashlight (102). The flashlight includes first and second flashlight electrical contacts. The charger includes first (122a) and second (122b) flashlight supports or jaws that support the flashlight in a flashlight receiving region of the charger (104). The flashlight supports (122) include a tapered surface that varies a dimension of the battery receiving region as a function of a longitudinal position of the flashlight supports (122). The charger (104) also includes a light source (120) that indicates when the flashlight (102) has been correctly inserted in the charger (104).
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: April 24, 2012
    Assignee: Eveready Battery Company, Inc.
    Inventors: Joseph P. Gardner, Angelo Kotsis, Michael S. Squires, Timothy Rugendyke
  • Battery container having cruciform vent and cover
    Patent number: 8158280
    Abstract: An electrochemical cell is provided with an enhanced pressure relief vent formed in a closed end of the cell container that achieves effective venting of gas from the closed end of the container. The electrochemical cell including a container having a first end, a second end, a side wall extending between the first and second ends, and an end wall extending across the first end. The cell has a positive electrode, a negative, and an aqueous alkaline electrolyte, all disposed in the container. The cell further includes a pressure relief vent having a reduced thickness groove formed in the end wall of the container. The reduced thickness groove is formed having eight segments extending radially from a central location. A cover is welded on the end wall of the container via at least three welds, wherein the angular spacing between two adjacent welds is greater than 120°.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: April 17, 2012
    Assignee: Eveready Battery Company, Inc.
    Inventors: Robert E. Ray, John C. Stearns, Walter B. Ebner, Richard L. Bouffard, R. Justin Begg
  • Lighting Device Utilizing A Light Emitting Diode Disposed within a Tubular Lens
    Publication number: 20120081890
    Abstract: The present invention provides a lighting device having a plurality of light source assemblies within a light housing. The light source assemblies include a light emitting diode disposed in tubular lens. The light housing is attached to an edge of the body.
    Type: Application
    Filed: December 13, 2011
    Publication date: April 5, 2012
    Applicant: EVEREADY BATTERY COMPANY, INC.
    Inventors: David R. Dalton, Angelo Kotsis, John R. Brown
  • Closure assembly with low vapor transmission for electrochemical cell
    Patent number: 8147999
    Abstract: A closure assembly for an electrochemical cell including a container and an end assembly sealing an open end of the container in order to minimize mass or weight loss of the cell due to electrolyte vapor transmission is disclosed. The end assembly is provided with a vent member capable of venting a fluid when the pressure within the cell exceeds a predetermined limit; a contact member operatively in electrical contact with a conductive contact of the end assembly and a current collector of an electrode of the cell; and an insulating, polymeric seal member disposed at least between conductive components of the closure assembly having different polarities. In a preferred embodiment, the seal member has a selected dimensional ratio in order to minimize vapor transmission of the electrolyte through the seal member.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: April 3, 2012
    Assignee: Eveready Battery Company, Inc.
    Inventor: James X. Wu
  • Alkaline electrochemical cell
    Patent number: 8133615
    Abstract: An alkaline electrochemical cell is provided which efficiently utilizes active materials within the cell to achieve enhanced cost efficiency. The electrochemical cell includes a container defining a sealed volume and an anode and cathode disposed in the sealed volume of the container. The cathode includes manganese dioxide and the anode includes zinc. A ratio of zinc weight to anode volume is less than 1.8. An alkaline electrolyte is disposed in the container in contact with the anode and cathode, and water is disposed within the container. A weight ratio of water to manganese dioxide is greater than 0.28, and a weight ratio of water to zinc is greater than 0.65.
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: March 13, 2012
    Assignee: Eveready Battery Company, Inc.
    Inventor: Robert P. Johnson
  • Alkaline Electrochemical Cell with Reduced Gassing
    Publication number: 20120052413
    Abstract: Electrochemical cells including a casing or cup for direct electrical contact with a negative electrode or counter electrode and serving as the current collector for the electrode. The casing includes a substrate having a plated coating of an alloy including copper, tin and zinc, the coating having a composition gradient between the substrate and the external surface of the coating wherein the copper content is greater adjacent the substrate than at the external surface of the coating and the tin content is greater at the external surface of the coating than adjacent the substrate. Methods for forming a coated casing and an electrochemical cell including a coated casing are disclosed, preferably including providing an electrode casing with a coating utilizing variable current density plating that reduces discoloration of a surface exposed to the ambient atmosphere.
    Type: Application
    Filed: November 3, 2011
    Publication date: March 1, 2012
    Applicant: EVEREADY BATTERY COMPANY, INC.
    Inventor: Jason L. Stimits
  • High discharge capacity lithium battery
    Patent number: 8124274
    Abstract: Electrochemical battery cells, and more particularly, to cells comprising a lithium negative electrode and an iron disulfide positive electrode. Before use in the cell, the iron disulfide has an inherent pH, or a mixture of iron disulfide and an pH raising additive compound have a calculated pH, of at least a predetermined minimum pH value. In a preferred embodiment, the pH raising additive compound comprises a Group IIA element of the Periodic Table of the Elements, or an acid scavenger or pH control agent such as an organic amine, cycloaliphatic epoxy, amino alcohol or overbased calcium sulfonate. In one embodiment, the iron disulfide particles utilized in the cell have a specific reduced average particle size range.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: February 28, 2012
    Assignee: Eveready Battery Company, Inc.
    Inventors: Jack W. Marple, Michael W. Wemple
  • Positive temperature coefficient light emitting diode light
    Patent number: 8124918
    Abstract: An apparatus includes a light source, a substrate, a temperature-based controller and an insulator. The light source is mounted to the substrate. The temperature-based controller is electrically coupled to the light source and causes the light source to provide a relatively constant light output. The insulator is positioned proximate the temperature based controller.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: February 28, 2012
    Assignee: Eveready Battery Company, Inc.
    Inventor: Peter F Hoffman
  • 12V power adapter
    Patent number: D655246
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: March 6, 2012
    Assignee: Eveready Battery Company, Inc.
    Inventors: Jonathan A Fitch, Donwoong Kang
  • Dual 12V power adapter
    Patent number: D655247
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: March 6, 2012
    Assignee: Eveready Battery Company, Inc.
    Inventors: Jonathan A. Fitch, Donwoong Kang
  • Charger for a lighting device
    Patent number: D656894
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: April 3, 2012
    Assignee: Eveready Battery Company, Inc.
    Inventors: Zachary Stephanchick, Donwoong Kang
  • Charger
    Patent number: D656895
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: April 3, 2012
    Assignee: Eveready Battery Company, Inc.
    Inventor: Jonathan A. Fitch
  • Accessory for a lighting device
    Patent number: D657090
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: April 3, 2012
    Assignee: Eveready Battery Company, Inc.
    Inventors: Brian M. Kaule, David A. Spartano, Scott W. Osiecki
  • Path light device
    Patent number: D657481
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: April 10, 2012
    Assignee: Eveready Battery Company, Inc.
    Inventors: David J Hine, Ronald J Kingston
  • Safety razor
    Patent number: D659285
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: May 8, 2012
    Assignee: Eveready Battery Company, Inc.
    Inventors: Sean Lukan, Andrew Hitchcock, Jiajun Shen
  • Safety razor
    Patent number: D659286
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: May 8, 2012
    Assignee: Eveready Battery Company, Inc.
    Inventors: Sean Lukan, Andrew Hitchcock, Jiajun Shen