Patents by Inventor Joel Mack

Joel Mack 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-antimony-magnesium alloys for storage cell supports and method of manufacturing said alloys
    Patent number: 4525327
    Abstract: A lead based alloy for electrode supports of a lead-acid storage cell, the alloy containing between 0.05% and 4% antimony between 0.02% and 0.3% magnesium, and no barium. The magnesium permits a reduced antimony content, thereby reducing the corrosion, self-discharge, and hydrogen-releasing overvoltage problems caused by the presence of antimony in electrode supports, without adversely affecting the beneficial mechanical properties provided by antimony. It is essential to have no barium, which causes cracking and high mass corrosion of the alloy during use in a lead-acid cell.
    Type: Grant
    Filed: December 28, 1982
    Date of Patent: June 25, 1985
    Assignee: Compagnie Europeenne d'Accumulateurs
    Inventors: Roland Bardin, Joel Mack, Jean-Jacques Counioux