Patents by Inventor David P. Zachary

David P. Zachary 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: 5694742
    Abstract: An apparatus and method for producing strapless bales of highly compressible textile fibers is disclosed, wherein a compressed block of the fibers is ejected and expanded into a flexible bag. The apparatus includes a supply chamber for supplying loose fibers to a tramping chamber which is stationary. A ram assembly repeatedly tramps the fibers to form a compacted fiber mass which is then formed into a compressed fiber block within a stationary compression chamber disposed in fiber transfer relation to the stationary tramping chamber. The compressed fiber block is ejected transverse to the compression chamber through an ejection sleeve about which an oversized flexible bag is fitted. Due to the fact that the bag is of a greater size than the cross section of the ejection sleeve and due to the stretch and flexibility of the bag, the compressible fibers in the compressed fiber block undergo an expansion process wherein the flexible bag is filled with the compressible fibers to form a strapless bale.
    Type: Grant
    Filed: October 21, 1996
    Date of Patent: December 9, 1997
    Inventors: Kenneth W. Elliott, C. Thomas Curles, Alex Hollingsworth, David P. Zachary, Thomas C. Sisk, Michel D. Vaniman
  • Patent number: 5687643
    Abstract: An apparatus and method for producing strapped bales of highly compressible textile fibers is disclosed. The apparatus includes a supply chamber for supplying loose fibers to a tramping chamber which is stationary. A ram assembly repeatedly tramps loose fibers to form a compacted fiber mass which is then formed into a compressed fiber block within a stationary compression chamber disposed in fiber transfer relation to the stationary tramping chamber. The stationary tramping and compression chambers are off-set and the fiber mass is transferred through a transfer opening into the compression chamber. During the compression cycle, a new fiber mass may be tramped in the tramping chamber allowing a high production rate of strapped fiber bales. The compressed fiber block is formed between a movable main platen and a movable secondary platen which are axially aligned in the compression chamber.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: November 18, 1997
    Inventors: J. David Felts, Kenneth W. Elliott, David P. Zachary
  • Patent number: 5493963
    Abstract: A high production, double lift box baler having a pair of lift box assemblies which rotate between a charging position and a compression position. Each lift box assembly includes a lift box and a displaceable lower platen which has a latched position in which the lower platen forms a floor of the lift box. Each lower platen also has an unlatched position in which the lower platen is independently displaced to rest against a bottom sill during a compression cycle to withstand the compression forces. The lower platens are independently displaceable, so that while one platen is displaced against the bottom sill for compression, the other sill is latched and is utilized as a floor for tramping the fibers during a filling cycle. A latch assembly is provided for unlatching the lower platen at the compression position during a compression cycle, and for latching the lower platen integrally to the lift box for rotation and tramping.
    Type: Grant
    Filed: April 13, 1995
    Date of Patent: February 27, 1996
    Assignee: Fishburne International, Inc.
    Inventors: Curtis T. Curles, Paul R. Sexton, David P. Zachary