Patents by Inventor James Alvin Boldra

James Alvin Boldra 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).

  • Multi-roll bonding and aperturing
    Patent number: 7323072
    Abstract: A method and apparatus for bonding and aperturing one or more fibrous webs including bonding at least one fibrous web in a bonding nip created by a rotatable bonding roll and a rotatable anvil roll and aperturing the at least one fibrous web in an aperturing nip created by a rotatable aperture roll and an anvil roll. The bonding roll has a plurality of protuberances extending from the peripheral bonding surface that define a bonding pattern and result in highly bonded regions within the fibrous web. The aperture roll has a plurality of projections extending from the peripheral aperture surface that define an aperturing pattern. The aperturing pattern substantially aligns with the bonding pattern thereby creating apertures within the highly bonded regions.
    Type: Grant
    Filed: April 27, 2005
    Date of Patent: January 29, 2008
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Darin Allen Engelhart, James Alvin Boldra, Robert John Leveille, Robert Eugene Vogt
  • Method and apparatus for making on-line stabilized absorbent materials
    Patent number: 6846448
    Abstract: A method for forming a stabilized airlaid layer (86) can include an airforming of a substantially unbonded fibrous layer (66) which includes absorbent fibers and binder-fibers. The fibrous layer (66) is exposed to high-frequency electromagnetic energy during a distinctively short activation period to activate the binder-fibers to provide the stabilized, airlaid layer (86). In a particular aspect the activation period can be not more than about 3 sec.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: January 25, 2005
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Timothy James Rymer, Michael Barth Venturino, Mark Scott Lancaster, Robert Eugene Vogt, Dennis John DeGroot, Michael Joseph Garvey, James Alvin Boldra, Frank Paul Abuto
  • Method and apparatus for making on-line stabilized absorbent materials
    Publication number: 20030116888
    Abstract: A method for forming a stabilized airlaid layer (86) can include an airforming of a substantially unbonded fibrous layer (66) which includes absorbent fibers and binder-fibers. The fibrous layer (66) is exposed to high-frequency electromagnetic energy during a distinctively short activation period to activate the binder-fibers to provide the stabilized, airlaid layer (86). In a particular aspect the activation period can be not more than about 3 sec.
    Type: Application
    Filed: December 20, 2001
    Publication date: June 26, 2003
    Inventors: Timothy James Rymer, Michael Barth Venturino, Mark Scott Lancaster, Robert Eugene Vogt, Dennis John DeGroot, Michael Joseph Garvey, James Alvin Boldra, Frank Paul Abuto