Patents by Inventor Duane William Zugel

Duane William Zugel 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).

  • Spirit level
    Patent number: 7117608
    Abstract: A spirit level comprising a body having a level face for setting a surface, at least one bubble vial mounted in the body, the bubble vial having a longitudinal axis generally perpendicular to the level face, and an optical transfer element fixed to the body which transfers an image of the bubble vial to a viewing plane generally parallel to the level face.
    Type: Grant
    Filed: March 2, 2004
    Date of Patent: October 10, 2006
    Assignee: Kapro Industries Ltd.
    Inventors: Duane William Zugel, Emanuel Szumer
  • Spirit level
    Publication number: 20040250433
    Abstract: A spirit level comprising a body having a level face for setting a surface, at least one bubble vial mounted in the body, the bubble vial having a longitudinal axis generally perpendicular to the level face, and an optical transfer element fixed to the body which transfers an image of the bubble vial to a viewing plane generally parallel to the level face.
    Type: Application
    Filed: March 2, 2004
    Publication date: December 16, 2004
    Applicant: KAPRO INDUSTRIES LTD.
    Inventors: Duane William Zugel, Emanuel Szumer
  • Spirit level
    Patent number: 6748666
    Abstract: A spirit level comprising a body having a level face for setting a surface, at least one bubble vial mounted in the body, the bubble vial having a longitudinal axis generally perpendicular to the level face, and an optical transfer element fixed to the body which transfers an image of the bubble vial to a viewing plane generally parallel to the level face.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: June 15, 2004
    Assignee: Kapro Industries Ltd.
    Inventors: Duane William Zugel, Emanuel Szumer
  • Spirit level
    Publication number: 20020174554
    Abstract: A spirit level comprising a body having a level face for setting a surface, at least one bubble vial mounted in the body, the bubble vial having a longitudinal axis generally perpendicular to the level face, and an optical transfer element fixed to the body which transfers an image of the bubble vial to a viewing plane generally parallel to the level face.
    Type: Application
    Filed: July 24, 2002
    Publication date: November 28, 2002
    Applicant: KAPRO INDUSTRIES LTD.
    Inventors: Duane William Zugel, Emanuel Szumer
  • Spirit level
    Patent number: 6449859
    Abstract: A spirit level comprising a body having a level face for setting a surface, at least one bubble vial mounted in the body, the bubble vial having a longitudinal axis generally perpendicular to the level face, and an optical transfer element fixed to the body which transfers an image of the bubble vial to a viewing plane generally parallel to the level face.
    Type: Grant
    Filed: April 28, 1998
    Date of Patent: September 17, 2002
    Assignee: Kapro Industries Ltd.
    Inventors: Duane William Zugel, Emanuel Szumer