Patents by Inventor Sheldon L. Levy

Sheldon L. Levy 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).

  • Reflector assembly
    Patent number: 4943325
    Abstract: A reflector assembly for a solar energy system including a circular dish-shaped concentrator which may be oriented towards the sun. The concentrator provides a conical flux concentration with a circular, cross-sectional image. A photovoltaic receiver with a square surface is positioned partly within the flux concentration . The reflector assembly includes reflector elements for redirecting concentrated flux from marginal portions of the flux concentration image to corner portions of the receiver surface.
    Type: Grant
    Filed: October 19, 1988
    Date of Patent: July 24, 1990
    Assignee: Black & Veatch, Engineers-Architects
    Inventor: Sheldon L. Levy
  • Molding a glass-plastic composite lens
    Patent number: 4798690
    Abstract: A method is provided for producing a molded composite form comprising a substrate bonded to a thermoplastic element whereby the thermoplastic element, either separate from or together with the substrate, is heated to a first temperature sufficient to soften prior to placement in a mold with the substrate. The thermoplastic element and substrate are then comolded in a cool mold whereby the composite is cooled and shaped into a predetermined configuration in one operation.
    Type: Grant
    Filed: November 3, 1986
    Date of Patent: January 17, 1989
    Assignee: Electric Power Research Institute, Inc.
    Inventor: Sheldon L. Levy