Patents by Inventor David Paul Boden

David Paul Boden 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).

  • Expanders for lead-acid batteries
    Patent number: 8637183
    Abstract: An expander formulation used in battery paste compositions. The expander formulation incorporates effective amounts, or elevated concentrations of up to 6% of graphite and mixtures of carbon black and graphite to lessen or minimize the accumulation of lead sulfate on the surface of the negative plate during high rate PSOC battery operation, and/or to increase the electrochemical efficiency, the reserve capacity, the cold cranking performance and the cycle life of lead-acid batteries.
    Type: Grant
    Filed: September 2, 2008
    Date of Patent: January 28, 2014
    Assignee: Hammond Group, Inc.
    Inventors: David Paul Boden, Daniel V. Loosemore
  • Cureless battery paste and method for producing battery plates
    Patent number: 8021784
    Abstract: A battery paste composition incorporates and promotes the formation of tetra basic lead sulfate using a micronized TTBLS additive, and eliminates free lead using a special oxide, during paste mixing and drying. Battery plates utilizing the disclosed battery paste composition are produced without the need for curing, and instead can be used in the battery immediately following plate drying.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: September 20, 2011
    Assignee: Hammond Group, Inc.
    Inventor: David Paul Boden
  • Expanders for lead-acid batteries
    Publication number: 20090325068
    Abstract: An expander formulation used in battery paste compositions. The expander formulation incorporates effective amounts, or elevated concentrations of up to 6% of graphite and mixtures of carbon black and graphite to lessen or minimize the accumulation of lead sulfate on the surface of the negative plate during high rate PSOC battery operation, and/or to increase the electrochemical efficiency, the reserve capacity, the cold cranking performance and the cycle life of lead-acid batteries.
    Type: Application
    Filed: September 2, 2008
    Publication date: December 31, 2009
    Inventors: David Paul Boden, Daniel V. Loosemore
  • Lead-acid battery expanders with improved life at high temperatures
    Publication number: 20080305396
    Abstract: An expander formulation for use in a battery paste incorporates an organic component or lignosulfonate characterized by improved resistance to high temperature degradation. Battery plates made from battery pastes which incorporate this expander formulation exhibit considerable improvements in the life of the batteries, especially at high battery operating temperatures. The organic component preferably is a purified, partially desulfonated, high molecular weight sodium lignosulfonate made from softwood.
    Type: Application
    Filed: June 6, 2007
    Publication date: December 11, 2008
    Inventor: David Paul Boden
  • Battery paste additive and method for producing battery plates
    Patent number: 7118830
    Abstract: A battery paste additive, and process for making the same comprising micronized seed crystals of tetra basic lead sulfate, is added to battery paste and results in accelerated curing time and other improvements in battery performance. The battery paste additive may be used to produce positive or negative battery plates and may be use with conventional mixing, pasting and curing processes and equipment.
    Type: Grant
    Filed: March 23, 2004
    Date of Patent: October 10, 2006
    Assignee: Hammond Group, Inc.
    Inventors: David Paul Boden, Benjamin Paul Labovitz