Spherical Object Patents (Class 112/470.35)
  • Patent number: 7308860
    Abstract: The present invention relates to a novel sewing machine for decoratively stitching a cricket ball, the machine of the present invention will be particularly useful to provide decorative stitching on hemispherical leather cups prior to assembling them and stitching them to form the cricket ball.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: December 18, 2007
    Assignee: Council of Scientific and Industrial Research
    Inventors: Hardyal Singh, Surinder Singh Sehmby, Narayan Prasad Mukherjee, Gopalsamy Balamurugan, Uma Datta, Joydeb Roychoudhury
  • Patent number: 7287479
    Abstract: A stitch tightening device of a ball stitching machine comprises a ball stitching table having at least one clamping tool and a stitch tightening unit for tightening a thread to be assembled to a ball. The stitch tightening unit includes a set of thread clamping units at two sides of the clamping tool. The stitch control device is interconnected with and interacted with a first treadle through a driven element; and the stitch tightening unit has at least two clampers; the first treadle drives a control wire; and then the control wire drives the clamper so as to engage the thread clamping unit. The clamping head is connected to a second treadle through a linkage; and the second treadle drives the clamping head to move aside to be away from the stitch control device. The first treadle drives a control wire through a driven element.
    Type: Grant
    Filed: August 14, 2006
    Date of Patent: October 30, 2007
    Inventor: Yao-Jen Huang
  • Patent number: 6223668
    Abstract: A method is provided for hand stitching a multi-panel sports ball.
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: May 1, 2001
    Assignee: Joyful Long Industries, Ltd
    Inventor: Chong Veng Chan