Patents Assigned to C & D Power Systems, Inc.
  • Alkali metal polysilica gel electrolyte lead-acid battery and method for making the same
    Patent number: 4889778
    Abstract: A lead-acid battery having thixotropic gel electrolyte comprising a blend of alkali metal polysilica and sulfuric acid. A method for producing a lead-acid battery having thixotropic gel electrolyte may be a continuous or an intermittent process. An aqueous colloidal dispersion may be produced by blending dry alkali metal polysilica with water and the gel electrolyte is provided by combining the aqueous collodial dispersion of alkali metal polysilica with liquid sulfuric acid.
    Type: Grant
    Filed: April 25, 1988
    Date of Patent: December 26, 1989
    Assignee: C & D Power Systems, Inc.
    Inventors: Sudhan S. Misra, Terrence M. Noveske
  • Alkali metal polysilica gel electrolyte lead-acid battery and method for making the same
    Patent number: 4863816
    Abstract: A method for producing a lead-acid battery having a thixotropic gel electrolyte, comprising an aqueous colloidal dispersion of alkali metal polysilica with sulfuric acid while introducing said combination into a lead-acid battery precursor.
    Type: Grant
    Filed: July 29, 1987
    Date of Patent: September 5, 1989
    Assignee: C&D Power Systems, Inc.
    Inventors: Sudhan S. Misra, Terrence M. Noveske
  • Post seal and method of manufacture for lead-acid batteries
    Patent number: 4752545
    Abstract: A lead-acid battery includes a case having an apertured cover with the aperture being for passage of a terminal post therethrough for electrically connecting electrodes within the battery case to apparatus outside the battery, with the terminal post extending through the aperture. A rubber layer, devoid of rubber fillers and plasticizers, circumferentially surrounds the post at the aperture. A rubber-bonding epoxy polymer is between the rubber layer and the aperture through the case.
    Type: Grant
    Filed: May 7, 1987
    Date of Patent: June 21, 1988
    Assignee: C & D Power Systems, Inc.
    Inventors: William B. Brecht, Sudhan S. Misra
  • Post seal and method of manufacture for lead-acid batteries
    Patent number: 4683647
    Abstract: A lead-acid battery includes a case having an apertured cover with the aperture being for passage of a terminal post therethrough for electrically connecting electrodes within the battery case to apparatus outside the battery, with the terminal post extending through the aperture. A rubber layer, devoid of rubber fillers and plasticizers, circumferentially surrounds the post at the aperture. A rubber-bonding epoxy polymer is between the rubber layer and the aperture through the case.
    Type: Grant
    Filed: April 7, 1986
    Date of Patent: August 4, 1987
    Assignee: C & D Power Systems, Inc.
    Inventors: William B. Brecht, Sudhan S. Misra