Patents by Inventor Adly A. Gorrafa

Adly A. Gorrafa 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: 5575049
    Abstract: A self stringing jet for air texturing yarn having a yarn needle slidably mounted in the jet body for movement from a preset operating position to a string-up position. The yarn needle may be removed for inspection without disturbing the appropriate operating position by attaching a flange located outside the jet body to the yarn needle in a manner to engage means for stopping slidable movement of the yarn needle in the operating position. The flange is rotatable from engagement with means for stopping slidable movement of the yarn needle to permit the yarn needle to be moved axially out from the body without disturbing the means for stopping the yarn guiding member or without further rotation; the means for stopping slidable movement of the yarn needle is resettable to various positions to handle texturing of various yarn sizes.
    Type: Grant
    Filed: August 29, 1995
    Date of Patent: November 19, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Adly A. Gorrafa, Jagdish N. Shah
  • Patent number: 5020199
    Abstract: A yarn treating jet is modified to locate a baffle at the outlet end of the jet. The baffle is positioned a fixed distance above the central axis of the jet and away from the outlet end of the jet such that the yarn and air follow the lower surface of the baffle to a point where the yarn leaves the baffle.
    Type: Grant
    Filed: April 7, 1988
    Date of Patent: June 4, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Adly A. Gorrafa
  • Patent number: 4945618
    Abstract: A yarn treating jet is modified to locate a baffle at the outlet end of the jet. The baffle is positioned a fixed distance above the central axis of the jet and away from the outlet end of the jet such that the yarn and air follow the lower surface of the baffle to a point where the yarn leaves the baffle.
    Type: Grant
    Filed: April 3, 1989
    Date of Patent: August 7, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Adly A. Gorrafa
  • Patent number: 4922593
    Abstract: In a system for air-jet texturing yarn a yarn treating jet is modified to locate a baffle at the outlet end of the jet. The baffle is positioned a fixed distance above the central axis of the jet and away from the outlet end of the jet such that the yarn and air follow the lower surface of the baffle to a point where the yarn leaves the baffle to increase windup tension and provide a highly coherent textured yarn.
    Type: Grant
    Filed: January 30, 1989
    Date of Patent: May 8, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Adly A. Gorrafa