Patents by Inventor Ralph N. Weiss

Ralph N. Weiss 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).

  • Weighted leg exerciser
    Patent number: 4568078
    Abstract: An apparatus for exercising the rotator muscles of the leg of a person. The apparatus has a frame supporting an adjustable seat, a rotatable knee support cradle in which the knee of a user is securely strapped for preventing flexion of the leg at the knee joint, the ankle of the user resting on a rotatable ankle support cradle. The ankle cradle is adjustable in distance relative to the knee cradle. Rotation of the knee cradle is opposed by suspended weights or by any other appropriate energy absorbing device.
    Type: Grant
    Filed: August 18, 1983
    Date of Patent: February 4, 1986
    Inventor: Ralph N. Weiss
  • Portable table
    Patent number: D293172
    Type: Grant
    Filed: July 8, 1985
    Date of Patent: December 15, 1987
    Inventor: Ralph N. Weiss
  • Street elbow holder tool
    Patent number: D316953
    Type: Grant
    Filed: February 22, 1988
    Date of Patent: May 21, 1991
    Inventor: Ralph N. Weiss