Patents by Inventor Mark A. Nuss

Mark A. Nuss 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: 4915898
    Abstract: An improved method for the continuous fabrication of metal-hydride, electrochemical, hydrogen storage alloy, negative electrodes for use in rechargeable nickel metal hydride cells. The improved method comprises the steps of reducing the size of a high hardness, metal hydride, hydrogen storage alloy by shattering it along natural fracture line thereof. The process next includes providing measured amounts of powered metal hydride electrochemical hydrogen storage alloy material and disposing said material upon a continuous wire mesh screen substrate. Thereafter, the powdered metal hydride electrochemical hydrogen storage alloy and wire mesh screen are subjected to a compaction process wherein they are rolled and pressed so as to form a single integral electrode web which is subsequently exposed to a high temperature sintering process in a chemically inert environment.
    Type: Grant
    Filed: February 9, 1989
    Date of Patent: April 10, 1990
    Assignee: Energy Conversion Devices, Inc.
    Inventors: Merle Wolff, Mark A. Nuss, Michael A. Fetchenko, Andrea L. Lijoi, Steven P. Sumner, Joseph LaRocca, Thomas Kaatz
  • Patent number: 4820481
    Abstract: An improved method for the continuous fabrication of metal-hydride, electrochemical, hydrogen storage alloy, negative electrodes for use in rechargeable nickel metal hydride cells. The improved method comprises the steps of providing measured amounts of powdered metal hydride electrochemical hydrogen storage alloy material and disposing said material upon a continuous wire mesh screen substrate. Thereafter, the powdered metal hydride electrochemical hydrogen storage alloy and wire mesh screen are subjected to a compaction process wherein they are rolled and pressed so as to form a single integral electrode web which is subsequently exposed to a high temperature sintering process in a chemically inert environment. The sintering process is designed to drive off excess moisture in the material while discouraging oxidation of the electrode web and set the electrode web state of charge.
    Type: Grant
    Filed: April 25, 1988
    Date of Patent: April 11, 1989
    Assignee: Energy Conversion Devices, Inc.
    Inventors: Merle Wolff, Mark A. Nuss, Michael A. Fetcenko, Andrea L. Lijoi