Patents by Inventor Walter F. Bachelder

Walter F. Bachelder 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).

  • Patent number: 4928533
    Abstract: A burst testing apparatus is provided. The apparatus includes a burst tester for determining the burst strength of sheet material such as paper. An automatic feeder is provided for advancing the sheet material after each successive test. A photo-optical sensing means may also be provided for sensing the presence of the sheet material and for initiating a test. A control unit is operatively connected to the burst tester and the feeder. The control unit is operative to store and analyze burst test results.
    Type: Grant
    Filed: June 30, 1989
    Date of Patent: May 29, 1990
    Assignee: Testing Machines Inc.
    Inventors: Walter F. Bachelder, John L. Sullivan, Peter J. Fiore, Godfrey L. Hansen
  • Patent number: 4802366
    Abstract: An impact testing apparatus and process are provided. The apparatus comprises a thickness verifier to measure the thickness of each specimen. The apparatus further comprises a notcher and a notch verifier which are operative to first cut notches in a test group of specimens and to subsequently verify the accuracy of the notches. The apparatus further comprises a robotic gripper to sequentially deliver specimens to a vise for impact testing. The impact tester of the apparatus is operative to automatically assess the impact on each specimen. Additionally, the impact tester comprises optical sensors to assess the type of break of each specimen subjected to the impact test. A control unit receives input data from the various components of the apparatus, analyzes the data and prepares test reports.
    Type: Grant
    Filed: May 26, 1988
    Date of Patent: February 7, 1989
    Assignee: Testing Machines Inc.
    Inventors: Walter F. Bachelder, Maurice Frankel, Peter Fiore
  • Patent number: D315690
    Type: Grant
    Filed: May 11, 1989
    Date of Patent: March 26, 1991
    Assignee: Testing Machines Inc.
    Inventors: Walter F. Bachelder, John L. Sullivan, Peter J. Fiore, Godfrey L. Hansen