Patents by Inventor Hanspeter Laubscher

Hanspeter Laubscher 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 monitoring and/or measuring parameters of a running, thread-like or wire-like test material and method for operating the device
    Patent number: 5054317
    Abstract: The device contains a measuring gap, which is provided for the passage of the test material, the measuring gap having two side walls each of which is provided with a measuring electrode forming part of a capacitive measuring element. An optical measuring element having a light source arranged on one side of the measuring gap and having a photoelectric element is provided in addition to the capacitive measuring element, and both measuring elements form part of a common measuring head. The fluctuations in accuracy of previous measuring heads having only one measuring element are thereby reduced and automatic checking of the measuring head output can be preformed. In addition, parameters which could not be determined with previous measuring heads can be measured and monitored in accordance with the present invention.
    Type: Grant
    Filed: June 7, 1990
    Date of Patent: October 8, 1991
    Assignee: Zellweger Uster AG
    Inventor: Hanspeter Laubscher