Patents by Inventor Alex Radin

Alex Radin 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).

  • Notching machine and method for mechanical testing specimens
    Patent number: 5319983
    Abstract: Notching methods and machines are provided by this invention for preparing notches in mechanical testing specimens. The notching machines razor element for creating a notch in the specimen and mechanical actuation elements for substantially linearly contacting the razor element with the specimen in a direction which is either substantially normal to the surface of the specimen receiving the notch or substantially normal to a stress created in the specimen during testing. This actuation forms a notch without any significant residual stresses forming ahead of the notch.
    Type: Grant
    Filed: April 16, 1992
    Date of Patent: June 14, 1994
    Assignee: The Trustees of the University of Pennsylvania
    Inventors: Norman Brown, Alex Radin, Xici Lu