Patents by Inventor Malcolm Dewar

Malcolm Dewar 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).

  • Method and apparatus for continuously mixing battery pastes
    Publication number: 20080003501
    Abstract: A process and apparatus for continuously mixing and applying paste to battery grids for use in lead-acid battery systems, in which particulate lead oxide, water and sulphuric acid are reacted in an elongated mixer having a mixing to conveying ratio of about 65:35 to 80:20 with controlled reaction temperature for an exit product temperature in the range of above 60° C. to about 80° C. Additives including reinforcing fibres can be added in an amount up to 0.6 wt % of the lead oxide and carbon and graphite powder can be added in an amount up to 6 wt % of the lead oxide.
    Type: Application
    Filed: June 20, 2007
    Publication date: January 3, 2008
    Inventors: Albert Vincze, Douglas Clark, Victor Saleh, Malcolm Dewar, Robert Fritts