Patents by Inventor Harry P. Hall

Harry P. Hall 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).

  • Process for spontaneouly transporting a fluid
    Patent number: 5855798
    Abstract: Synthetic fiber that are capable of spontaneously transporting water on their surface satisfy the equation(1-X cos .theta..sub.a)<0,wherein.theta..sub.a is the advancing contact angle of water measured on a flat film made from the same material as the fiber and having the same surface treatment, if any,X is a shape factor of the fiber cross-section that satisfies the following equation ##EQU1## wherein P.sub.w is the wetted perimeter of the fiber and r is the radius of the circumscribed circle circumscribing the fiber cross-section and D is the minor axis dimensionacross the fiber cross-section, and wherein the uphill flux value of said fiber is from 2 to 60 cc/g/hr when measured from a reservoir of synthetic urine test fluid along a 20 cm long ramp to an absorbant on an attached platform at 10 cm height.
    Type: Grant
    Filed: March 20, 1996
    Date of Patent: January 5, 1999
    Assignee: Eastman Chemical Company
    Inventors: Bobby M. Phillips, Shriram Bagrodia, William A. Haile, Harry P. Hall, David A. Casey, J. Nelson Dalton, Ronnie J. Jones, Ronald S. Scalf, Richard D. Neal, Lewis C. Trent, Jack L. Nelson
  • Process for helically crimping a fiber
    Patent number: 5733490
    Abstract: Synthetic fiber that are capable of spontaneously transporting water on their surface satisfy the equation(1-X cos .theta..sub.a)<0,wherein.theta..sub.a is the advancing contact angle of water measured on a flat film made from the same material as the fiber and having the same surface treatment, if any,X is a shape factor of the fiber cross-section that satisfies the following equation ##EQU1## wherein P.sub.W is the wetted perimeter of the fiber and r is the radius of the circumscribed circle circumscribing the fiber cross-section and D is the minor axis dimension across the fiber cross-section,and wherein the uphill flux value of said fiber is from 2 to 60 cc/g/hr when measured from a reservoir of synthetic urine test fluid along a 20 cm long ramp to an absorbant on an attached platform at 10 cm height.
    Type: Grant
    Filed: March 20, 1996
    Date of Patent: March 31, 1998
    Assignee: Eastman Chemical Company
    Inventors: Bobby M. Phillips, Shriram Bagrodia, William A. Haile, Harry P. Hall, David A. Casey, J. Nelson Dalton, Ronnie J. Jones, Ronald S. Scalf, Richard D. Neal, Lewis C. Trent, Jack L. Nelson
  • Spinnerets for making fibers capable of spontaneously transporting fluids
    Patent number: 5723159
    Abstract: Spinnerets are used to make synthetic fibers having the unique property of spontaneously transporting water on their surface. The synthetic fibers satisfy the equation(1-X cos .theta..sub.a)<0,wherein.theta..sub.a is the advancing contact angle of water measured on a flat film made from the same material as the fiber and having the same surface treatment, if any,X is a shape factor of the fiber cross-section that satisfies the following equation ##EQU1## wherein P.sub.w is the wetted perimeter of the fiber and r is the radius of the circumscribed circle circumscribing the fiber cross-section and D is the minor axis dimension across the fiber cross-section, and wherein the uphill flux value of said fiber is from 2 to 60 cc/g/hr when measured from a reservoir of synthetic urine test fluid along a 20 cm long ramp to an absorbent on an attached platform at 10 cm height.
    Type: Grant
    Filed: March 20, 1996
    Date of Patent: March 3, 1998
    Assignee: Eastman Chemical Company
    Inventors: Bobby M. Phillips, Shriram Bagrodia, William A. Haile, Harry P. Hall, David A. Casey, J. Nelson Dalton, Ronnie J. Jones, Ronald S. Scalf, Richard D. Neal, Lewis C. Trent, Jack L. Nelson