Patents by Inventor Jind{haeck over (r)}ich Zeman

Jind{haeck over (r)}ich Zeman 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).

  • Method and device for measuring permanent length deformations of materials
    Patent number: 6170337
    Abstract: A method for measuring permanent length deformations in materials includes determining a change of an initial distance between two measuring points on the material surface. A first pair of impressions is formed on a portable impression body that corresponds to these two measuring points prior to the expected deformation and a second pair of impressions is formed after a critical loading of the material. The distances between the first and the second pairs of impressions are then compared. A device for carrying out the method uses a fixed portion arranged on the material being measured and a portable impression body. The fixed portion of the device is provided with a pair of measuring elements which correspond to the measuring points disposed at a mutual distance from each other, and the portable impression body of the device has an impression face adapted for receiving the impressions that are created by the measuring elements.
    Type: Grant
    Filed: July 8, 1999
    Date of Patent: January 9, 2001
    Inventor: Jind{haeck over (r)}ich Zeman