Patents by Inventor Wesley E. Grenlulnd

Wesley E. Grenlulnd 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).

  • Method and apparatus for monitoring and controlling the velocity of a jet along the slice opening of a papermaking machine
    Patent number: 5145560
    Abstract: The jet velocity along a slice opening of a papermaking machine is monitored at plural locations to provide a jet velocity profile. This jet velocity profile may be adjusted to more closely match a reference velocity profile for the jet. Preferably, microwave doppler-effect velocity sensors are utilized for sensing a jet velocity. In one specific embodiment of the invention, preamplifier and automatic gain control circuitry is used to minimize variations in the sensed signal due to changing conditions of the jet.
    Type: Grant
    Filed: December 29, 1989
    Date of Patent: September 8, 1992
    Assignee: Weyerhaeuser Company
    Inventor: Wesley E. Grenlulnd