Patents by Inventor David Whitfield Thomas

David Whitfield Thomas 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).

  • Patent number: 4046538
    Abstract: The disclosure embraces a method of and apparatus for distributing linear groups of fibers onto a moving collector which include engaging and advancing groups of fibers by rotating pull wheels, disengaging the groups of fibers from the pull wheels by oscillating and rotating members associated with the pull wheels, oscillating the members by cam-actuated systems of linkage to control disengagement of the groups of fibers from the pull wheels and effect distribution of the groups of fibers on the collector, and applying pressure on the linkage systems opposing the operation of the systems to substantially eliminate lost motion in the linkage systems and thereby promote oscillatory motion accuracy of the fiber disengaging members whereby the collected body of fibers is endowed with substantially uniform characteristics.
    Type: Grant
    Filed: April 19, 1976
    Date of Patent: September 6, 1977
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: David Whitfield Thomas