Patents by Inventor Benjamin Scott Johnson

Benjamin Scott Johnson 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).

  • Electroblowing web formation process
    Patent number: 8808608
    Abstract: An improved electroblowing process is provided for forming a fibrous web of nanofibers wherein polymer stream is issued from a spinning nozzle in a spinneret with the aid of a forwarding gas stream, passes an electrode and a resulting nanofiber web is collected on a collector. The process includes applying a high voltage to the electrode and grounding the spinneret such that an electric field is generated between the spinneret and the electrode of sufficient strength to impart an electrical charge on the polymer as it issues from the spinning nozzle.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: August 19, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Michael Allen Bryner, Jack Eugene Armantrout, Benjamin Scott Johnson
  • ELECTROBLOWING WEB FORMATION PROCESS
    Publication number: 20110171335
    Abstract: An improved electroblowing process is provided for forming a fibrous web of nanofibers wherein polymer stream is issued from a spinning nozzle in a spinneret with the aid of a forwarding gas stream, passes an electrode and a resulting nanofiber web is collected on a collector. The process includes applying a high voltage to the electrode and grounding the spinneret such that an electric field is generated between the spinneret and the electrode of sufficient strength to impart an electrical charge on the polymer as it issues from the spinning nozzle.
    Type: Application
    Filed: March 23, 2011
    Publication date: July 14, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Michael Allen Bryner, Jack Eugene Armantrout, Benjamin Scott Johnson
  • Electroblowing web formation
    Patent number: 7931456
    Abstract: An improved electroblowing process is provided for forming a fibrous web of nanofibers wherein polymer stream is issued from a spinning nozzle in a spinneret with the aid of a forwarding gas stream, passes an electrode and a resulting nanofiber web is collected on a collector. The process includes applying a high voltage to the electrode and grounding the spinneret such that an electric field is generated between the spinneret and the electrode of sufficient strength to impart an electrical charge on the polymer as it issues from the spinning nozzle.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: April 26, 2011
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Michael Allen Bryner, Jack Eugene Armantrout, Benjamin Scott Johnson
  • Electroblowing web formation process
    Patent number: 7585451
    Abstract: An improved electroblowing process is provided for forming a fibrous web of nanofibers wherein polymer stream is issued from a spinning nozzle in a spinneret with the aid of a forwarding gas stream, passes an electrode and a resulting nanofiber web is collected on a collector. The process includes applying a high voltage to the spinneret and grounding the electrode such that an electric field is generated between the spinneret and the electrode of sufficient strength to impart an electrical charge on the polymer as it issues from the spinning nozzle.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: September 8, 2009
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Michael Allen Bryner, Jack Eugene Armantrout, John Edward Armstrong, Benjamin Scott Johnson
  • Fiber charging apparatus
    Patent number: 7465159
    Abstract: A fiber spinning apparatus for charging a polymer-containing liquid stream, having at least one electrically charged, point-electrode positioned adjacent the intended path of said liquid stream and creating an ion flow by corona discharge to impart electrical charge to the polymer-containing liquid stream.
    Type: Grant
    Filed: August 17, 2005
    Date of Patent: December 16, 2008
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Jack Eugene Armantrout, Benjamin Scott Johnson, Colby Abraham Rude, Michael Allen Bryner
  • Electroblowing web formation
    Publication number: 20080213417
    Abstract: An improved electroblowing process is provided for forming a fibrous web of nanofibers wherein polymer stream is issued from a spinning nozzle in a spinneret with the aid of a forwarding gas stream, passes an electrode and a resulting nanofiber web is collected on a collector. The process includes applying a high voltage to the electrode and grounding the spinneret such that an electric field is generated between the spinneret and the electrode of sufficient strength to impart an electrical charge on the polymer as it issues from the spinning nozzle.
    Type: Application
    Filed: April 18, 2008
    Publication date: September 4, 2008
    Inventors: Michael Allen Bryner, Jack Eugene Armantrout, Benjamin Scott Johnson