Patents by Inventor William G. Pierce

William G. Pierce 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).

  • Absorbent garment having a waist belt attachment system
    Patent number: 4909802
    Abstract: An integral disposable absorbent garment, such as a disposable diaper or incontinent brief, having an integral belt segment on each side of the garment. The integral belt segments, in association with a receiving or attachment means, are intended to hold or suspend the garment about the lower torso of the wearer.
    Type: Grant
    Filed: April 16, 1987
    Date of Patent: March 20, 1990
    Assignee: The Procter & Gamble Company
    Inventors: Nicholas A. Ahr, William G. Pierce
  • Apparatus for dewatering fibrous materials
    Patent number: 4619194
    Abstract: In the dewatering press of this invention, a ram, movable in a horizontal plane by hydraulic means, compresses a slurry in a compression chamber which includes as one wall a stop gate assembly movable in a vertical plane and as another wall a self-cleaning screen. After compression in a first direction is completed the direction of the ram's travel is reversed and compression in an opposed, but structurally identical, compression chamber takes place.
    Type: Grant
    Filed: April 3, 1984
    Date of Patent: October 28, 1986
    Inventor: William G. Pierce