Patents by Inventor Heyward O. Cannon

Heyward O. Cannon 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: 6185789
    Abstract: Metallic clothing having metallic wire teeth bent at a double angle. The lower portion of each tooth is angled by an first angle with respect to vertical, and the upper portion is angled at a second angle with respect to vertical. The upper portion terminates at the tip, or point, of the tooth. This double-angle tooth profile is angled in the direction opposite to the general direction of travel of fibers being carded. The upper side portion of each tooth is tapered inwardly to the tip, and the rear edge of the upper end of each tooth may be provided with a forward curvature towards the point of the tooth. Alternate embodiments include single angled teeth and a double-angled teeth, each having a base portion substantially the same height as the teeth and teeth having serrated side portions.
    Type: Grant
    Filed: May 4, 1999
    Date of Patent: February 13, 2001
    Assignee: John D. Hollingsworth on Wheels, Inc.
    Inventors: John D. Hollingsworth, Heyward O. Cannon
  • Patent number: 5898978
    Abstract: Metallic clothing having metallic wire teeth bent at a double angle. The lower portion of each tooth is angled by an first angle with respect to vertical, and the upper portion is angled at a second angle with respect to vertical. The upper portion terminates at the tip, or point, of the tooth. This double-angle tooth profile is angled in the direction opposite to the general direction of travel of fibers being carded. The upper side portion of each tooth is tapered inwardly to the tip, and the rear edge of the upper end of each tooth may be provided with a forward curvature towards the point of the tooth. Alternate embodiments include single angled teeth and a double-angled teeth, each having a base portion substantially the same height as the teeth.
    Type: Grant
    Filed: May 26, 1998
    Date of Patent: May 4, 1999
    Assignee: John D. Hollingsworth on Wheels, Inc.
    Inventors: John D. Hollingsworth, Heyward O. Cannon