Patents Examined by David S. Brown
  • Adjustable speed control arrangement for motorized exercise treadmills
    Patent number: 4635928
    Abstract: A motorized treadmill exercising device comprising a generally planar frame equipped with a planar slider bed and head and tail rollers journalled respectively at the head and tail ends of the frame, over which an endless plastic belt is trained.
    Type: Grant
    Filed: April 15, 1985
    Date of Patent: January 13, 1987
    Assignee: Ajax Enterprises Corporation
    Inventors: Ralph Ogden, Carl J. Johnson