Patents Assigned to Edwin Ruff
  • Belt chain
    Patent number: 5168981
    Abstract: A belt chain includes transverse links having non-circular end sections received within complimentary apertures in the core of supporting longitudinal belts. The belt cores are reinforced by longitudinal cords encircling adjacent apertures and twisted between them. When assembled in a conveyor, the resulting belt tension causes the cords to contract about the end sections of the links supported by them, thereby preventing rotation of the links about their transverse axes.
    Type: Grant
    Filed: June 18, 1991
    Date of Patent: December 8, 1992
    Assignee: Edwin Ruff
    Inventor: Leonard Ruff