Patents by Inventor Jon Wyman

Jon Wyman 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).

  • Penetration hardness tester
    Patent number: 6142010
    Abstract: A hardness tester is disclosed which conducts its hardness test through a penetrator impinging upon the surface of a test specimen. Enhanced accuracy and repeatability is achieved through the use of a closed loop system and directly mounting a load cell to the indentor, connecting a linear displacement transducer directly to the load cell and eliminating an elevating screw in initially positioning and applying load to the specimen to be tested.
    Type: Grant
    Filed: March 21, 1997
    Date of Patent: November 7, 2000
    Assignee: Instron Corporation
    Inventors: John J. Merck, Jr., Jon Wyman, Richard Conti
  • Penetration hardness tester
    Patent number: 5616857
    Abstract: A hardness tester is disclosed which conducts its hardness test through a penetrator impinging upon the surface of a test specimen. Enhanced accuracy and repeatability is achieved through the use of a closed loop system and directly mounting a load cell to the indentor, connecting a linear displacement transducer directly to the load cell and eliminating an elevating screw in initially positioning and applying load to the specimen to be tested.
    Type: Grant
    Filed: January 25, 1996
    Date of Patent: April 1, 1997
    Assignee: Instron Corporation
    Inventors: John J. Merck, Jr., Jon Wyman, Richard Conti