Patents by Inventor Lawrence F. Ciupak

Lawrence F. Ciupak 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: 5003855
    Abstract: A chopper having a feed mechanism for strands of continuous materials such as glass filaments includes an outer rotatable ring which receives and supports a plurality of radially oriented blades and an inner rotatable feed and pressure wheel disposed eccentrically within the outer ring. The ring and wheel are driven synchronously by a common drive unit such that the tangential speeds of the blade faces and pressure wheel are equal. The pressure wheel is positioned adjacent but not coincident to the circle defined by the inner faces of the blades. Continuous strands of material are provided to the chopper and a two position roller feeds the material to the feed and pressure wheel when its linear speed matches the tangential speed of the blades and wheel. The wheel directs the strands to the faces of the blades upon which the strands build up. As the thickness of the strands on the face of the blades increase, the wheel forces the strands further into the blades thereby cutting them.
    Type: Grant
    Filed: January 23, 1989
    Date of Patent: April 2, 1991
    Inventor: Lawrence F. Ciupak