Patents by Inventor Antonio L. Ferreira

Antonio L. Ferreira 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).

  • Lead acid battery with gelled electrolyte formed by filtration action of absorbent separators and method for producing it
    Patent number: 7682738
    Abstract: A method for producing a lead acid battery that operates on the oxygen cycle is disclosed. The method includes the steps of: assembling a cell comprising a positive plate, a negative plate, and a sheet of separator material which is an absorbent, porous filtration medium, so that there is free space between the plates and surfaces of the separator, inserting the cell into a case, introducing into the case a mixture of sulfuric acid and silica including silica from a never dried precipitated silica slurry, causing the sulfuric acid in the mixture in the free space to gel, and sealing the case. The sulfuric acid in the mixture in the free space can be caused to gel by an increase in the silica content thereof, by an increase in the specific gravity thereof, or by both an increase in the silica content thereof, and an increase in the specific gravity thereof.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: March 23, 2010
    Assignee: KVG Technologies, Inc.
    Inventors: Antonio L. Ferreira, George C. Zgruis, Norman Lifshutz
  • Methods of modifying fibers
    Patent number: 7395979
    Abstract: Methods of modifying fibers, such as glass fibers, are disclosed. The modified fibers can be used, for example, in a lead acid battery.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: July 8, 2008
    Assignee: Evanite Fiber Corporation
    Inventors: Ronald D. Reher, John D. Windisch, Steven J. Russell, George C. Zguris, Antonio L. Ferreira
  • Glass fibers
    Patent number: 6929858
    Abstract: Glass fibers are disclosed. The glass fibers can be used, for example, in a lead acid battery.
    Type: Grant
    Filed: March 25, 2002
    Date of Patent: August 16, 2005
    Assignee: Squannacook Technologies LLC
    Inventors: George C. Zguris, Antonio L. Ferreira
  • Glass fibers
    Publication number: 20030180534
    Abstract: Glass fibers are disclosed. The glass fibers can be used, for example, in a lead acid battery.
    Type: Application
    Filed: March 25, 2002
    Publication date: September 25, 2003
    Inventors: George C. Zguris, Antonio L. Ferreira
  • Battery paste
    Patent number: 6531248
    Abstract: A battery paste is disclosed. One such paste consists essentially of at least one lead oxide (i.e., an uncalcined oxide of lead) and at least one lead oxide sulfate, sufficient water to moisten the paste, and from 0.02 percent to 15 percent based on the weight of the lead oxide plus the weight of the lead oxide sulfate, calculated as the lead oxide, of glass fibers having an average diameter not greater than 15 micron. Another paste consists essentially of at least one lead oxide and at least one lead oxide sulfate, sufficient water to moisten the paste, and from 1 percent to 15 percent based on the weight of the lead oxide plus the weight of the lead oxide sulfate, calculated as the lead oxide, of glass fibers of a specific composition that enables specific beneficial ions to diffuse into the paste during the life of the battery. A method for producing such a battery paste and a delivery system for adding the additives that are added into the paste is also disclosed.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: March 11, 2003
    Assignee: Squannacook Technologies LLC
    Inventors: George C. Zguris, Antonio L. Ferreira
  • Battery paste
    Publication number: 20030044683
    Abstract: A battery paste is disclosed. One such paste consists essentially of at least one lead oxide (i.e., an uncalcined oxide of lead) and at least one lead oxide sulfate, sufficient water to moisten the paste, and from 0.02 percent to 15 percent based on the weight of the lead oxide plus the weight of the lead oxide sulfate, calculated as the lead oxide, of glass fibers having an average diameter not greater than 15 micron. Another paste consists essentially of at least one lead oxide and at least one lead oxide sulfate, sufficient water to moisten the paste, and from 1 percent to 15 percent based on the weight of the lead oxide plus the weight of the lead oxide sulfate, calculated as the lead oxide, of glass fibers of a specific composition that enables specific beneficial ions to diffuse into the paste during the life of the battery.
    Type: Application
    Filed: September 30, 2002
    Publication date: March 6, 2003
    Applicant: Squannacook Technologies LLC, a Delaware Corporation
    Inventors: George C. Zguris, Antonio L. Ferreira
  • Lead acid battery
    Publication number: 20030035998
    Abstract: Lead acid batteries and related compositions and methods are disclosed.
    Type: Application
    Filed: March 25, 2002
    Publication date: February 20, 2003
    Inventors: George C. Zguris, Antonio L. Ferreira