Patents by Inventor Otto W. Weeper

Otto W. Weeper 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: 4289466
    Abstract: An apparatus for continuously manufacturing hollow tubular elements has an elongated central core with one end portion connectable with a drive for rotation about its longitudinal axis, a plurality of supporting elements projecting circumferentially outwardly from the central core and longitudinally spaced along the same, a plurality of guides means each provided on the supporting element and axially aligned with one another, a cam element forming a cam surface arranged circumferentially about the longitudinal axis of the core and extending in a plane which is helical with respect to the plane transverse to the axis, and a plurality of rod elements forming a substantially cylindrical molding surface, arranged in side-by-side relationship, and extending longitudinally over the entire length of the central core in a circumferentially spaced relationship with the latter.
    Type: Grant
    Filed: May 2, 1980
    Date of Patent: September 15, 1981
    Inventor: Otto W. Weeper