Patents by Inventor Richard Daniel Pike

Richard Daniel Pike 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: 5759926
    Abstract: The present invention provides a splittable conjugate fiber containing at least two incompatible polymers that are arranged in distinct segments across the cross-section of the fiber, wherein the segments are continuous along the length of the fiber. The fiber can be characterized in that the segments of the fiber dissociate in less than about 30 seconds when contacted with a hot aqueous fibrillation-inducing medium. The invention also provides a fabric containing the split fibers produced from the precursor splittable conjugate fiber and laminates containing the split fiber fabric. Additionally provided is a process for producing the split fibers.
    Type: Grant
    Filed: November 30, 1995
    Date of Patent: June 2, 1998
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Richard Daniel Pike, Philip Anthony Sasse, Edward Jason White, Ty Jackson Stokes
  • Patent number: 5721180
    Abstract: The present invention provides a self-supporting laminate filter medium having an electret lofty spunbond web and an electret microfiber web, wherein the spunbond web has a density between about 0.01 g/cm.sup.3 and about 0.1 g/cm.sup.3.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: February 24, 1998
    Inventors: Richard Daniel Pike, Peter Wyndham Shipp, Jr.
  • Patent number: 5707468
    Abstract: There is provided a process which comprises the step of subjecting a just produced spunbond web to a high flow rate, heated stream of air across substantially the width of the web to very lightly bond the fibers of the web together. Such bonding should be the minimum necessary in order to satisfy the needs of further processing yet not detrimentally affect the web. The fibers of the web may be monocomponent or biconstituent and the web should be substantially free of adhesives and not subjected to compaction rolls.
    Type: Grant
    Filed: December 22, 1994
    Date of Patent: January 13, 1998
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Billy Dean Arnold, Samuel Edward Marmon, Richard Daniel Pike, Stephen Harding Primm, Lawrence James Romano, III, Philip Anthony Sasse
  • Patent number: 5695376
    Abstract: The present invention provides a barrier laminate having a barrier layer and a lofty crimped-fiber nonwoven web layer, which laminate provides a foam-like resiliency, cloth-like texture and liquid barrier property. The barrier layer of the laminate is selected from films, microfiber nonwoven webs and laminates thereof, and the crimped-fiber web layer, which contains a structural fiber component and an heat-activatable adhesive component, has substantially uniformly distributed interfiber bonds. Additionally provided are thermoformed articles from the laminate and a thermoforming process for producing the articles.
    Type: Grant
    Filed: May 19, 1995
    Date of Patent: December 9, 1997
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Paul Joseph Datta, Stanley Michael Gryskiewicz, Richard Daniel Pike
  • Patent number: 5643653
    Abstract: A shaped nonwoven fabric comprises continuous spunbond filaments made by directly forming the spunbond filaments into a web in a single process. The fabric has an array of discrete surface features such as apertures or projections, or both. The spunbond filaments are bonded together with an adhesive polymeric component so that the shape of the fabric is retained. The fabric can be engineered to have particular fluid handling properties, strength properties, abrasive properties and aesthetic properties. Articles such as personal care products, garments, medical products and cleaning products are also disclosed.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: July 1, 1997
    Assignee: Kimberly-Clark Corporation
    Inventors: Henry Louis Griesbach, III, Richard Daniel Pike, Sharon Watkins Gwaltney, Ruth Lisa Levy, Lawrence Howell Sawyer, Richard Macferran Shane, Philip Anthony Sasse