Patents by Inventor David R. Murphy

David R. Murphy 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).

  • Means for forming both fluid and insect barriers, whereat structural units are adjoined
    Patent number: 6205718
    Abstract: The well-known, compliant sheet of material which is enwrapped about the juncture of structural units, to form a fluid barrier thereat, has its structure-adhering adhesive admixed with an insecticide or termiticide, to additionally form an insect barrier thereat as well. In an alternate embodiment the insecticide or termiticide is sprayed onto the adhesive.
    Type: Grant
    Filed: February 23, 1999
    Date of Patent: March 27, 2001
    Inventors: Joseph M. Murphy, David R. Murphy
  • Accelerator for charged particles
    Patent number: 4050914
    Abstract: An accelerator for charged particles comprising: a vacuum tight chamber, means for producing a beam of particles, and means for inhibiting secondary emission. The means for inhibiting secondary emission comprises outwardly extending wedge-shaped members covering the inner walls of the vacuum chamber. The outwardly facing surfaces of the wedge-shaped members are covered with a nonevaporable getter metal.
    Type: Grant
    Filed: July 26, 1976
    Date of Patent: September 27, 1977
    Assignee: S.A.E.S. Getters S.p.A.
    Inventor: David R. Murphy