Patents by Inventor Jack R. Tatham

Jack R. Tatham 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).

  • Apparatus for controlling edge uniformity in nonwoven fabrics
    Patent number: 4377889
    Abstract: An improved method of manufacture of a nonwoven fabric wherein a nonwoven fabric web is passed through a needle punching zone wherein the nonwoven fabric web is needle punched in such a manner that the number of needle punches per unit area in the edge portions of the nonwoven fabric web is less than the number of needle punches per unit area in the medial portion of the nonwoven fabric web, and the thus needled nonwoven fabric web is passed through a tentering zone wherein it is stretched transversely relative to its direction of movement to thereby reduce the weight per unit area of the edge portions to approximately the weight per unit area of the medial portion so that a nonwoven fabric of substantially uniform thickness and weight per unit area is produced.
    Type: Grant
    Filed: May 21, 1981
    Date of Patent: March 29, 1983
    Assignee: Phillips Petroleum Company
    Inventors: Jack R. Tatham, Jerry L. Shelor
  • Method for controlling edge uniformity in nonwoven fabrics
    Patent number: 4295251
    Abstract: An improved method of manufacture of a nonwoven fabric wherein a nonwoven fabric web is passed through a needle punching zone wherein the nonwoven fabric web is needle punched in such a manner that the number of needle punches per unit area in the edge portions of the nonwoven fabric web is less than the number of needle punches per unit area in the medial portion of the nonwoven fabric web, and the thus needled nonwoven fabric web is passed through a tentering zone wherein it is stretched transversely relative to its direction of movement to thereby reduce the weight per unit area of the edge portions to approximately the weight per unit area of the medical portion so that a nonwoven fabric or substantially uniform thickness and weight per unit area is produced.
    Type: Grant
    Filed: March 14, 1980
    Date of Patent: October 20, 1981
    Assignee: Phillips Petroleum Company
    Inventors: Jack R. Tatham, Jerry L. Shelor