Patents by Inventor Stephen D. Ingle

Stephen D. Ingle 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).

  • Adhering nanofibers to polymeric media using a high temperature singe
    Patent number: 10266966
    Abstract: A method of bonding a nanofiber web of nanofibers having diameters of between about 50 nanometers and about 2,000 nanometers onto a surface of a woven or nonwoven polymeric media having media fiber diameters of between about 700 nanometers and about 50,000 nanometers utilizes exposing the topmost layer of nanofibers and media fibers to a jet of heated air for a time and at a distance such that substantially only the topmost layer of fibers are bonded. The jet of heated air exits through a nozzle slot having a length of less than about 2 inches in the nanofiber web travel direction. The temperature of the heated air ranges from about 2 to about 10 times the nanofiber melting temperature, and heat air has a nozzle slot velocity of greater than about 500 feet/minute. An adhesive may bond the nanofibers, to a media, which may be bi-component fiber fibers.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: April 23, 2019
    Assignee: Knovation, Inc.
    Inventors: John A. Robertson, Douglas J. Morgan, Stephen D. Ingle
  • Adhering Nanofibers to Polymeric Media Using a High Temperature Singe
    Publication number: 20180023215
    Abstract: A method of bonding a nanofiber web of nanofibers having diameters of between about 50 nanometers and about 2,000 nanometers onto a surface of a woven or nonwoven polymeric media having media fiber diameters of between about 700 nanometers and about 50,000 nanometers utilizes exposing the topmost layer of nanofibers and media fibers to a jet of heated air for a time and at a distance such that substantially only the topmost layer of fibers are bonded. The jet of heated air exits through a nozzle slot having a length of less than about 2 inches in the nanofiber web travel direction. The temperature of the heated air ranges from about 2 to about 10 times the nanofiber melting temperature, and heat air has a nozzle slot velocity of greater than about 500 feet/minute. An adhesive may bond the nanofibers, to a media, which may be bi-component fiber fibers.
    Type: Application
    Filed: October 15, 2015
    Publication date: January 25, 2018
    Applicant: Nanomeld LLC
    Inventors: John A. Robertson, Douglas J. Morgan, Stephen D. Ingle