Patents by Inventor William H. Greb

William H. Greb 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).

  • Pneumatic tension gauge
    Patent number: 4041779
    Abstract: A gauge for measuring or monitoring the tension in a running thread comprises three rolls arranged such that a thread running under tension in driving engagement with the three rolls exerts a radial force on the middle reaction roll which includes a pneumatic radial bearing. The pressure at selected points in the annular layer of pressurized gas of the pneumatic bearing is sensed to indicate the tension in the running thread.
    Type: Grant
    Filed: September 8, 1976
    Date of Patent: August 16, 1977
    Assignee: General Motors Corporation
    Inventor: William H. Greb