Patents by Inventor Manuel E. Papayanopulos

Manuel E. Papayanopulos 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).

  • Impact testing apparatus
    Patent number: 4640120
    Abstract: Impact testing apparatus in which a weighted dart is dropped from a prescribed height to penetrate a test specimen when traveling at a desired velocity and level of kinetic energy, the acceleration of the dart being assisted by a spring force in the direction of travel so that the prescribed height is maintained at a minimum for a given desired velocity and the dart being guided to the test specimen by a generally tubular guide within which the dart is loosely fitted. A force transducer is located at the tip of the dart for providing impact force information as the tip penetrates the test specimen.
    Type: Grant
    Filed: June 21, 1985
    Date of Patent: February 3, 1987
    Assignee: Rheometrics, Inc.
    Inventors: Ronald F. Garritano, John J. O'Connor, Manuel E. Papayanopulos