Patents by Inventor Raymond C. Dunaj

Raymond C. Dunaj 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).

  • Patent number: 5169111
    Abstract: A stand for receiving and stabilizing a shade umbrella. The stand includes a collapsible bag attached by its base portion to a rigid tubular sleeve member. The sleeve member is adapted for receiving and retaining various sizes of umbrella shafts passing therethrough. The collapsible bag may be charged, by way of its mouth, with sand, soil and the like to provide additional weight to the umbrella during windy conditions. After use the bag is emptied so that the stand may be collapsed for easy transport and storage.
    Type: Grant
    Filed: March 18, 1992
    Date of Patent: December 8, 1992
    Inventor: Raymond C. Dunaj
  • Patent number: 3979824
    Abstract: A can opener having at least two guide rollers or wheels positioned to moveably engage the underside of the lip around the top of a standard cylindrical tin can. These guide rollers are held in position by a main bracket that also holds a pivotably mounted cutter arm. The cutter arm includes a cutting device or wheel that is pushed through the top lid of the can just inside the outer lip when the cutting arm is depressed. When the cutting device has punctured the top lid of the can, the cutter arm is drawn around the periphery of the can, in one quick, easy motion to open the top of the can. The guide rollers hold the cutting device against the inside of the lip of the can and keep it penetrating through the top surface of the lid of the can throughout the operation.
    Type: Grant
    Filed: February 17, 1976
    Date of Patent: September 14, 1976
    Inventor: Raymond C. Dunaj