Patents by Inventor David N. Leader

David N. Leader 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: 8821960
    Abstract: The invention relates generally to an apparatus and method that enables a very accurate initial setup of the coating gap for slot die coater and subsequent control of the coating gap during coating operations such that web splices and web defects do not interrupt the coating process. An highly accurate initial set up is achieved via the use of a tapered or wedge-shaped adjustment member mounted perpendicular to the axis of travel of the coating head where the movement of this tapered or wedge-shaped adjustment member in a direction perpendicular to the axis of travel of the slot die housing adjusts the coating gap in increments on the order of ten microns.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: September 2, 2014
    Assignee: Ortho-Clinical Diagnostics, Inc.
    Inventors: James H. Jackson, David N. Leader
  • Patent number: 8297221
    Abstract: The invention relates generally to an apparatus and method that enables a very accurate initial setup of the coating gap for slot die coater and subsequent control of the coating gap during coating operations such that web splices and web defects do not interrupt the coating process. An highly accurate initial set up is achieved via the use of a tapered or wedge-shaped adjustment member mounted perpendicular to the axis of travel of the coating head where the movement of this tapered or wedge-shaped adjustment member in a direction perpendicular to the axis of travel of the slot die housing adjusts the coating gap in increments on the order of ten microns.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: October 30, 2012
    Assignee: Ortho-Clinical Diagnostics, Inc.
    Inventors: James H. Jackson, David N. Leader
  • Publication number: 20110311715
    Abstract: The invention relates generally to an apparatus and method that enables a very accurate initial setup of the coating gap for slot die coater and subsequent control of the coating gap during coating operations such that web splices and web defects do not interrupt the coating process. An highly accurate initial set up is achieved via the use of a tapered or wedge-shaped adjustment member mounted perpendicular to the axis of travel of the coating head where the movement of this tapered or wedge-shaped adjustment member in a direction perpendicular to the axis of travel of the slot die housing adjusts the coating gap in increments on the order of ten microns.
    Type: Application
    Filed: June 22, 2010
    Publication date: December 22, 2011
    Inventors: James H. Jackson, David N. Leader
  • Patent number: 5789667
    Abstract: To improve the recognition of defective electric motors, the present invention proposes a test apparatus and method comprising an accelerometer mounted on a member rotating with the output shaft of the motor under test. The accelerometer measures the acceleration in the direction of rotation. A communication path between the accelerometer and an electronic processor is provided to assign detected disturbances to certain known defect modes which have been obtained from sample defect motors. The communication path may comprise a slip ring contact.The rotating accelerometer can detect disturbances caused by gear train defects that cannot be discovered by an accelerometer mounted on the motor housing in the known way.
    Type: Grant
    Filed: April 25, 1997
    Date of Patent: August 4, 1998
    Inventors: David N. Leader, David M. Williams, William J. Ebersole