Patents by Inventor Wang Ching-Tse

Wang Ching-Tse 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).

  • Sheet pick-up module of automatic document feeder
    Patent number: 8276904
    Abstract: A sheet pick-up module includes a driving shaft, a driving shaft sleeve, a pick-up driving roller, a pick-up roller sleeve and a sliding sleeve. When the driving shaft is rotated to drive rotation of the driving shaft sleeve, the driving shaft sleeve pushes the sliding sleeve toward the pick-up roller sleeve, and the sliding sleeve is rotated to push the pick-up roller sleeve, so that the pick-up driving roller and the pick-up roller sleeve are synchronously rotated to transport the document at a pick-up speed. When the feed roller is contacted with the document to transport the document at a feed speed faster than the pick-up speed, the pick-up driving roller is driven to rotate by the document, and the pick-up roller sleeve is rotate to push the sliding sleeve, so that the sliding sleeve is moved in a direction away from the pick-up roller sleeve.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: October 2, 2012
    Assignee: Primax Electronics Ltd.
    Inventor: Wang Ching-Tse
  • SHEET PICK-UP MODULE OF AUTOMATIC DOCUMENT FEEDER
    Publication number: 20110316218
    Abstract: A sheet pick-up module includes a driving shaft, a driving shaft sleeve, a pick-up driving roller, a pick-up roller sleeve and a sliding sleeve. When the driving shaft is rotated to drive rotation of the driving shaft sleeve, the driving shaft sleeve pushes the sliding sleeve toward the pick-up roller sleeve, and the sliding sleeve is rotated to push the pick-up roller sleeve, so that the pick-up driving roller and the pick-up roller sleeve are synchronously rotated to transport the document at a pick-up speed. When the feed roller is contacted with the document to transport the document at a feed speed faster than the pick-up speed, the pick-up driving roller is driven to rotate by the document, and the pick-up roller sleeve is rotate to push the sliding sleeve, so that the sliding sleeve is moved in a direction away from the pick-up roller sleeve.
    Type: Application
    Filed: August 18, 2010
    Publication date: December 29, 2011
    Applicant: PRIMAX ELECTRONICS LTD.
    Inventor: Wang Ching-Tse