Patents Examined by Gilden: Leon
  • Seam lock spreader mounted on lock-seam machine base
    Patent number: 4614102
    Abstract: A seam lock spreader formed by providing a spreader wheel carrier adjustably attachable to the spindle of a conventional combination rotary machine and attaching also to the machine a pair of rollers especially shaped for driving sheet metal while providing a space for receiving its seam. The rollers are of a special size for fitting the combination rotary machine.
    Type: Grant
    Filed: July 22, 1985
    Date of Patent: September 30, 1986
    Inventor: Richard A. Kaar