Patents Assigned to Beverly Safford
  • Water activated electric cell and survival lamp system
    Patent number: 4628420
    Abstract: A deferred action electric cell of the type having a magnesium anode and a silver halide cathode, wherein the electrolyte is supported in dried form intermediate the electrodes for rapidly developing full electrical potential upon the addition of any aqueous fluid, even fresh water. A novel method of coating the magnesium anode utilizing a detergent bath produces a coating that prevents corrosive deterioration of the magnesium from handling and from close proximity of the dried electrolyte, for an extended shelf life.
    Type: Grant
    Filed: September 30, 1983
    Date of Patent: December 9, 1986
    Assignee: Beverly Safford
    Inventor: David T. McArthur, deceased