Patents Examined by Charles H. Sam
  • Knee pad attachment for invalid walker
    Patent number: 4722356
    Abstract: An attachment for an invalid walker that provides an adjustable padded support for the user's knee. The attachment has easily adapted hook elements for ready attachment to and detachment from conventional walkers. Provision is made for both vertical and angular position selectivity, and the support for the pad enables reversal of the pad supporting post so as to increase the versatility of the attachment.
    Type: Grant
    Filed: September 8, 1986
    Date of Patent: February 2, 1988
    Inventor: Carol C. Rehder
  • Height adjustable crutch
    Patent number: 4721125
    Abstract: A height adjustable crutch comprised of a one piece member which can serve as the combination of the bow and the carrier without any bolt and pins used in conventional types for securing them, so the structure of the height adjustable crutch is simpler and stronger than the conventional types that we can find today.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: January 26, 1988
    Inventor: Mei-Chin Wang-Lee