Patents by Inventor Franklin J. Martin

Franklin J. Martin 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).

  • Patent number: 5861225
    Abstract: A high capacity long cycle life positive electrode which includes an electronically conductive substrate for conducting electricity through the electrode and an electrochemically active nickel hydroxide material in electrical contact with the electronically conductive substrate, the electrochemically active nickel hydroxide material is composed of at least two different solid solution nickel hydroxide materials each having differing compositions. The positioning of the at least two different solid solution nickel hydroxide materials and their relative compositions alter the local redox potential or porosity to force discharge of the electrode in a stepwise fashion from the nickel hydroxide material remote from said conductive network or substrate, through any intermediate nickel hydroxide materials, to the nickel hydroxide material adjacent the conductive network or substrate.
    Type: Grant
    Filed: July 24, 1995
    Date of Patent: January 19, 1999
    Assignee: Ovonic Battery Company, Inc.
    Inventors: Dennis Corrigan, Cristian Fierro, Franklin J. Martin, Stanford R. Ovshinsky, Liwei Xu
  • Patent number: 5523182
    Abstract: A positive electrode material for use in electrochemical cells. This material comprises particles of positive electrode material including at least one electrochemically active hydroxide and a substantially continuous, uniform, encapsulant layer surrounding the particles of positive electrode material. The encapsulant layer is formed from a material which, upon oxidation during processing or during charging of the electrode, is convertible to a highly conductive form, and which, upon subsequent discharge of the electrode, does not revert to its previous form. Preferably, the electrochemically active hydroxide includes at least nickel hydroxide. The encapsulant layer is preferably formed from at least cobalt hydroxide or cobalt oxyhydroxide. This layer is formed on the particles of positive electrode material by precipitation from a cobalt salt solution, which can be a cobalt sulfate solution. Also disclosed are positive electrodes including the material and a precipitation method of forming the material.
    Type: Grant
    Filed: November 2, 1994
    Date of Patent: June 4, 1996
    Assignee: Ovonic Battery Company, Inc.
    Inventors: Stanford R. Ovshinsky, Michael A. Fetcenko, Cristian Fierro, Paul R. Gifford, Dennis A. Corrigan, Peter Benson, Franklin J. Martin
  • Patent number: 4303909
    Abstract: A standard mechanical lock is provided with an electrical coding system for setting off an alarm in the event that an incorrect key is used or the lock is tampered with. The electrical coding system includes a binary code inscribed in the back edge of the key. A plurality of conductive fingers are mounted on the lock body to contact the back of the key when the key is rotated in the lock. A decoding circuit is provided which sounds an alarm in the event that an incorrect code is presented to the fingers. In the event that an attempt is made to pick the lock, one or more of the fingers will become grounded thus setting off the alarm. Automotive and building applications are disclosed wherein microswitch sensors are placed at strategic locations to set off the alarm in the event that an attempt is made to circumvent the mechanical lock.
    Type: Grant
    Filed: October 18, 1979
    Date of Patent: December 1, 1981
    Assignee: James A. Martin
    Inventor: Franklin J. Martin