Patents by Inventor David D. Allerd

David D. Allerd 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).

  • Selective absorber amorphous alloys and devices
    Patent number: 4582764
    Abstract: There is disclosed a new and improved material and device for improved selective absorption of light energy for use in photothermal applications and a method and apparatus for manufacturing same.The device includes a layer of thermal infrared radiation reflecting material containing a transition metal or stainless steel. A solar radiation absorbing layer is deposited over the infrared reflecting layer. This layer comprises either amorphous boron or an amorphous alloy of boron and silicon, boron and germanium or boron and molybdenum.Finally, a solar radiation antireflecting material layer is deposited over the solar radiation absorbing layer. This layer comprises an amorphous alloy of nitrogen and either silicon or boron.
    Type: Grant
    Filed: September 24, 1982
    Date of Patent: April 15, 1986
    Assignee: Energy Conversion Devices, Inc.
    Inventors: David D. Allerd, Jaime M. Reyes, Jerry A. Piontkowski