Patents by Inventor Gianfranco Truffelli

Gianfranco Truffelli 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).

  • Circular knitting machine with device for producing tubular items closed at an axial end, and method for producing tubular items
    Publication number: 20010022095
    Abstract: A circular knitting machine for hosiery, with a device for producing tubular items closed at an axial end, and relative method. The machine has a diverter accommodated inside the needle cylinder disengaged from the rotation of the needle cylinder about its own axis with respect to the needle actuation cams and to the lowering sinker actuation cams. The diverter has a profile which protrudes from an internal region of the needle cylinder gradually toward the wall of the needle cylinder. The profile is engaged by an end portion of the item lying inside the needle cylinder between two needles mutually angularly spaced around the axis of the needle cylinder in order to achieve sliding of the item portion along the profile following rotation of the needle cylinder with respect to the diverter. The machine has sinkers for retaining the item portion against the profile during its sliding.
    Type: Application
    Filed: March 9, 2001
    Publication date: September 20, 2001
    Applicant: MATEC S.p.A.
    Inventors: Gianfranco Truffelli, Stefano Gabbrielli
  • Circular knitting machine with device for producing tubular items closed at an axial end, and method for producing tubular items
    Patent number: 6286342
    Abstract: A circular knitting machine for hosiery, with a device for producing tubular items closed at an axial end, and relative method. The machine has a diverter accommodated inside the needle cylinder disengaged from the rotation of the needle cylinder about its own axis with respect to the needle actuation cams and to the lowering sinker actuation cams. The diverter has a profile which protrudes from an internal region of the needle cylinder gradually toward the wall of the needle cylinder. The profile is engaged by an end portion of the item lying inside the needle cylinder between two needles mutually angularly spaced around the axis of the needle cylinder in order to achieve sliding of the item portion along the profile following rotation of the needle cylinder with respect to the diverter. The machine has sinkers for retaining the item portion against the profile during its sliding.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: September 11, 2001
    Assignee: Matec S.p.A.
    Inventors: Gianfranco Truffelli, Stefano Gabbrielli