Patents by Inventor Charles Portelli

Charles Portelli 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: 7246413
    Abstract: A magnetic knob is provided for use with a series of plates attached to threaded mounts which may be substituted for kitchen or bathroom cabinet door or drawer knobs. The user simply unscrews existing kitchen and/or bathroom cabinet knobs and replaces them with flat metal plates attached to threaded shafts. The metal plates are a direct replacement for the existing knobs and may not require any drilling or screwing or even use of tools. Once installed, the metal plates provide no means of gripping. Thus, the cabinet cannot be opened by a child or other unauthorized user (e.g., mentally handicapped individual). A knob provided with a strong magnet is provided so that an authorized user may attach the knob to one of the metal plates and thus open the cabinet.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: July 24, 2007
    Inventor: Charles Portelli
  • Publication number: 20050283950
    Abstract: A magnetic knob is provided for use with a series of plates attached to threaded mounts which may be substituted for kitchen or bathroom cabinet door or drawer knobs. The user simply unscrews existing kitchen and/or bathroom cabinet knobs and replaces them with flat metal plates attached to threaded shafts. The metal plates are a direct replacement for the existing knobs and may not require any drilling or screwing or even use of tools. Once installed, the metal plates provide no means of gripping. Thus, the cabinet cannot be opened by a child or other unauthorized user (e.g., mentally handicapped individual). A knob provided with a strong magnet is provided so that an authorized user may attach the knob to one of the metal plates and thus open the cabinet.
    Type: Application
    Filed: January 21, 2005
    Publication date: December 29, 2005
    Inventor: Charles Portelli
  • Patent number: D555537
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: November 20, 2007
    Inventor: Charles Portelli