Patents by Inventor Hubert Merki

Hubert Merki 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).

  • Device for the ultrasound measuring of cylindrical test models
    Patent number: 7140253
    Abstract: A device is provided for the ultrasonic measuring of cylindrical test specimen, in particular tubes and hoses, wherein said device can be filled with water or submerged in a water bath and is provided with at least one ultrasonic measuring head secured on the device. The device is characterized by a cylindrical reference mandrel, the longitudinal axis of which at least essentially coincides with the measuring axis of the device, and at least one cylindrical auxiliary mandrel that extends parallel to the reference mandrel, can be moved to a position between the ultrasonic measuring head and the reference mandrel, and can also be removed from this position.
    Type: Grant
    Filed: June 21, 2004
    Date of Patent: November 28, 2006
    Assignee: Zumbach Electronic AG
    Inventors: Hubert A. Merki, Sven Naegeli, James Daleo
  • Device for the ultrasound measuring of cylindrical test models
    Publication number: 20040255677
    Abstract: A device is provided for the ultrasonic measuring of cylindrical test specimen, in particular tubes and hoses, wherein said device can be filled with water or submerged in a water bath and is provided with at least one ultrasonic measuring head secured on the device. The device is characterized by a cylindrical reference mandrel, the longitudinal axis of which at least essentially coincides with the measuring axis of the device, and at least one cylindrical auxiliary mandrel that extends parallel to the reference mandrel, can be moved to a position between the ultrasonic measuring head and the reference mandrel, and can also be removed from this position.
    Type: Application
    Filed: June 21, 2004
    Publication date: December 23, 2004
    Applicant: ZUMBACH ELECTRONIC AG
    Inventors: Hubert A. Merki, Sven Naegeli, James Daleo
  • Method and apparatus for checking the wall thickness of a layer
    Patent number: 4641525
    Abstract: In a method of checking the insulating sheath on a wire or cable leaving an extruder, the external diameter of the insulating sheath is continuously determined over the whole circumference by means of a first measuring apparatus and the wall thickness of the insulation is continuously detected over the whole circumference by means of a second measuring apparatus. The measured values are supplied to a computer which, inter alia, continuously determines the difference between the maximum and minimum wall thicknesses found (W.sub.max -W.sub.min). Eccentricity and minimum wall thickness of the sheath are calculated from this difference and from the measured external diameter of the insulation and the diameter of the conductor of the wire or cable, and are indicated in a display device. The measurement is thus rendered largely independent of fluctuations in sensitivity of the measuring apparatus for the wall thickness of the insulation.
    Type: Grant
    Filed: June 10, 1985
    Date of Patent: February 10, 1987
    Assignee: Zumbach Electronic AG
    Inventor: Hubert Merki