Patents by Inventor Norman Brotzel

Norman Brotzel 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: 7478973
    Abstract: A leveling system for freshly poured concrete is provided comprising a hand screed and a hand float. The system includes a laser beam leveling system consisting of a laser transmitter mounted on the hand screed and a laser beam receiver target mounted on the hand float. The hand screed further includes an inclinometer mounted on top of the hand screed for maintaining the angle of the screed when the screed is used on sloped surfaces. Bubble levelers positioned on top of the hand screed and the hand float are used to maintain the hand screed and the hand float in a level position.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: January 20, 2009
    Assignee: Precise Tech Industries Ltd.
    Inventor: Norman Brotzel
  • Patent number: 7470084
    Abstract: An ergonomically-shaped hand screed for levelling and finishing concrete is provided. The screed has a finger relief groove on its rear face and a thumb relief groove on its front face. Both the finger and thumb grooves are positioned nearer the top surface of the screed to form an ergonomically comfortable handgrip. A concrete relief groove is located on the front face near the bottom surface to form a scraper edge. A ridge separates the thumb relief groove and the concrete groove. When the screed is used, the scraper edge and concrete relief groove draw up the concrete overburden from a concrete surface and deflect it away from the operator's hands.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: December 30, 2008
    Assignee: Precise Tech Industries Ltd.
    Inventor: Norman Brotzel
  • Publication number: 20070206991
    Abstract: A leveling system for freshly poured concrete is provided comprising a hand screed and a hand float. The system includes a laser beam leveling system consisting of a laser transmitter mounted on the hand screed and a laser beam receiver target mounted on the hand float. The hand screed further includes an inclinometer mounted on top of the hand screed for maintaining the angle of the screed when the screed is used on sloped surfaces. Bubble levelers positioned on top of the hand screed and the hand float are used to maintain the hand screed and the hand float in a level position.
    Type: Application
    Filed: February 27, 2007
    Publication date: September 6, 2007
    Applicant: Precise Tech Industries Ltd.
    Inventor: Norman Brotzel
  • Publication number: 20070206992
    Abstract: An ergonomically-shaped hand screed for levelling and finishing concrete is provided. The screed has a finger relief groove on its rear face and a thumb relief groove on its front face. Both the finger and thumb grooves are positioned nearer the top surface of the screed to form an ergonomically comfortable handgrip. A concrete relief groove is located on the front face near the bottom surface to form a scraper edge. A ridge separates the thumb relief groove and the concrete groove. When the screed is used, the scraper edge and concrete relief groove draw up the concrete overburden from a concrete surface and deflect it away from the operator's hands.
    Type: Application
    Filed: February 27, 2007
    Publication date: September 6, 2007
    Applicant: Precise Tech Industries Ltd.
    Inventor: Norman Brotzel