Patents by Inventor Richard A. Kaar

Richard A. Kaar 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).

  • Round collar maker
    Patent number: 4790166
    Abstract: A round collar maker having as one of its sections a conventional combination rotary machine, the collar maker having a pair of rollers on axles of the machine and having a guide provided with a cylindrical circumference which latter is arranged about an axis offset to one side of the axes of the shafts. The guide has an exterior portion having a cylindrical exterior rotating about a guide support which is cylindrical and horizontally elongated. The support is held on a support carrier which is attachable to the spindle of the machine. The rollers are reversible and are shaped so as to be useable, also, as rollers for a seam lock spreader which uses the same combination rotary machine as one of its sections.
    Type: Grant
    Filed: July 1, 1986
    Date of Patent: December 13, 1988
    Inventor: Richard A. Kaar
  • 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