Patents by Inventor John T. Hatfield

John T. Hatfield 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: 8256122
    Abstract: A two part scraper for scraping glass and other substrates, wherein a scraping part may be located on one side of the substrate and a handle member may be located on the other side. The two parts are magnetically coupled and move in tandem when the handle part is pulled by the user. A cutting blade may be received within a blade holder which may be mounted to the scraping part by screws and coil springs. The blade holder may be mounted at an angle such as a forty-five degree angle to the surface being scraped. The scraping part may comprise hook and loop material as a scrubbing surface and may have a suction cup located on that surface contacting the substrate. The handle part may have a soft felt lining for contacting the substrate.
    Type: Grant
    Filed: July 18, 2009
    Date of Patent: September 4, 2012
    Inventor: John T. Hatfield
  • Publication number: 20110010948
    Abstract: A two part scraper for scraping glass and other substrates, wherein a scraping part may be located on one side of the substrate and a handle member may be located on the other side. The two parts are magnetically coupled and move in tandem when the handle part is pulled by the user. A cutting blade may be received within a blade holder which may be mounted to the scraping part by screws and coil springs. The blade holder may be mounted at an angle such as a forty-five degree angle to the surface being scraped. The scraping part may comprise hook and loop material as a scrubbing surface and may have a suction cup located on that surface contacting the substrate. The handle part may have a soft felt lining for contacting the substrate.
    Type: Application
    Filed: July 18, 2009
    Publication date: January 20, 2011
    Inventor: JOHN T. HATFIELD