Patents by Inventor Chwan-Jon Wang

Chwan-Jon Wang 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).

  • Publication number: 20030004048
    Abstract: A sheet folding up and rolling machine comprises a frame member, which has an input tunnel at a side thereof and an output tunnel at the other side thereof. A feeding cylinder assembly has at a feeding cylinder and two pressing wheels pivoted in the frame member behind the input tunnel for drawing a sheet into the frame member. Five folding cylinders are pivoted in the frame member behind the feeding cylinder assembly for turning the path of the sheet. Two guiding plates are secured in the frame member corresponding to the feeding cylinder assembly and the folding cylinders respectively for guiding the sheet. Two limiting members are secured in the frame member, each of which has an opening facing to the folding cylinders respectively for the sheet can run into the limiting members to be folded up. A pair of rolling cylinders are pivoted in the frame behind the folding cylinders for rolling the folded sheet.
    Type: Application
    Filed: June 27, 2002
    Publication date: January 2, 2003
    Applicant: Paraton International Co., LTD.
    Inventor: Chwan-Jon Wang
  • Patent number: 6059711
    Abstract: A device is provided for tearing off a series of perforated paper sheets and folding the detached paper sheets. The device is composed of a frame, at least two paper feeding rollers, at least three paper folding rollers, a plurality of paper guiding plates, at least one paper confining element corresponding in location to the paper folding rollers, and a linking member consisting of a transmission belt, a paper feeding wheel and a paper folding wheel. The transmission belt is driven by a driving unit to actuate the paper feeding wheel and the paper folding wheel, which in turn actuate the paper feeding rollers and the paper folding rollers.
    Type: Grant
    Filed: November 2, 1998
    Date of Patent: May 9, 2000
    Assignee: Ecom Information Co., Ltd.
    Inventor: Chwan-Jon Wang