Patents by Inventor Steven A. Katzman

Steven A. Katzman 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).

  • Publication number: 20130232026
    Abstract: A system and method for applications that include a hierarchical selection system enabling efficient user selection of parameters while allowing for continuous progression through selection steps.
    Type: Application
    Filed: February 14, 2013
    Publication date: September 5, 2013
    Inventor: Steven Katzman
  • Patent number: 6717755
    Abstract: An apparatus for passively compensating for undesirable positional shifts in objects due to temperature changes. The apparatus is particularly suited for use in optical assemblies, where it is desired to compensate for thermal changes in the system to maintain an optical focus despite large changes in environmental temperature. A specially configured compensating member is placed between two objects whose spacing is to be regulated. The compensating member is composed of a material having a non-linear coefficient of thermal expansion, to permit the use of a compensating member also having a very high average coefficient of thermal expansion. The compensating member has multiple ramps or faces positioned at differing angles to permit thermal compensation to be predetermined and provided for selected temperatures, despite the non-linearity of the compensating member's coefficient of thermal expansion.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: April 6, 2004
    Assignee: Lockheed Martin Corporation
    Inventor: Steven A. Katzman
  • Publication number: 20040057130
    Abstract: An apparatus for passively compensating for undesirable positional shifts in objects due to temperature changes. The apparatus is particularly suited for use in optical assemblies, where it is desired to compensate for thermal changes in the system to maintain an optical focus despite large changes in environmental temperature. A specially configured compensating member is placed between two objects whose spacing is to be regulated. The compensating member is composed of a material having a non-linear coefficient of thermal expansion, to permit the use of a compensating member also having a very high average coefficient of thermal expansion. The compensating member has multiple ramps or faces positioned at differing angles to permit thermal compensation to be predetermined and provided for selected temperatures, despite the non-linearity of the compensating member's coefficient of thermal expansion.
    Type: Application
    Filed: September 25, 2002
    Publication date: March 25, 2004
    Inventor: Steven A. Katzman