Patents by Inventor Joseph F. Ley

Joseph F. Ley 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).

  • Method of forming pulp bales with dissolvable PVA baling strap material
    Patent number: 5066363
    Abstract: A method of processing pulp laps and a soluble strap material for holding such laps in a bale are disclosed. In accordance with the method the laps are maintained in the configuration of the bale by soluble straps comprised of PVA and are immersed in a pulping bath while still confined by the straps. The straps rupture and dissolve in the pulping bath releasing the paper laps. The straps are formed to maximize exposure of the PVA increments to the pulping bath to accelerate dissolving and may incorporate fillers of pulpable material to maintain the PVA increments in a separated condition.
    Type: Grant
    Filed: August 3, 1990
    Date of Patent: November 19, 1991
    Assignee: C. M. Offray & Son, Inc.
    Inventors: Richard P. Lee, Joseph F. Ley, John A. Mortensen