Patents by Inventor Fred M. Warzel

Fred M. Warzel 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: 4260568
    Abstract: Method for aspirating and propelling waste yarn into extruder or molding machine which comprises using a forwarding jet or yarn aspirator to feed a created wad of yarn into a hopper feeding pellets to an extruder or molding machine or the like, the operation being further characterized in providing and using a hood extending into the hopper to protect the wad until it can be picked up within the pellet mass flowing downwardly over and around the provided hood.In one embodiment of the method a godet roll is used, powered by a motor, for feeding the yarn to the aspirator at a controlled, desired speed. In a modification of the method, once the wad is being taken into the pellet mass and is being drawn by the extruder screw or by other means feeding a molding machine, etc., the air to the aspirator can be shut down in part or totally.
    Type: Grant
    Filed: June 13, 1979
    Date of Patent: April 7, 1981
    Assignee: Phillips Petroleum Co.
    Inventor: Fred M. Warzel
  • Patent number: 4175870
    Abstract: Method and apparatus for aspirating and propelling waste yarn into extruder or molding machine which comprises using a forwarding jet or yarn aspirator to feed a created wad of yarn into a hopper feeding pellets to an extruder or molding machine or the like, the operation being further characterized in providing a hood extending into the hopper to protect the wad until it can be picked up within the pellet mass flowing downwardly over and around the provided hood.In one embodiment of the method a godet roll is used, powered by a motor, for feeding the yarn to the aspirator at a controlled, desired speed. In a modification of the method, once the wad is being taken into the pellet mass and is being drawn by the extruder screw or by other means feeding a molding machine, etc., the air to the aspirator can be shut down in part or totally.
    Type: Grant
    Filed: January 17, 1978
    Date of Patent: November 27, 1979
    Assignee: Phillips Petroleum Company
    Inventor: Fred M. Warzel