Patents by Inventor Tsai Cheng-Liang

Tsai Cheng-Liang 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: 5775684
    Abstract: Apparatus for feeding distinct feed stock through a roller driven tray device to an information transfer device (i.e., scanning, facsimile, printing, copying) or a multipurpose information transfer device for processing feed stock, the roller driven tray device comprising a first tray and a second tray each tray capable of holding an item of feed stock for processing through the same port of an information transfer device from either tray without manual intervention. Also, an apparatus for maintaining alignment of feed stock in a roller driven tray device comprising a cam radially coupled to the first end of the roller shaft, a cam follower seated on the cam, a cam shaft with one end coupled to the cam follower and a second end slidably coupled to the tray housing, and a cantilever finger crank coupled to the cam shaft, and having a first position to not impede the path of the feed stock and a second position against the feed stock.
    Type: Grant
    Filed: October 20, 1995
    Date of Patent: July 7, 1998
    Assignee: Apple Computer, Inc.
    Inventors: Richard C. Jackson, John Avery Howard, Christopher O. Lada, Donald S. Minami, Lan Hao-Jui, Tsai Cheng-Liang
  • Patent number: 5760926
    Abstract: Apparatus for utilizing a single paper path for printing, copying, scanning, and sending and receiving facsimiles by combining a gear box assembly and an adjustable scan head assembly with a conventional printer. The invention contemplates a first position for scanning, copying, and sending facsimiles of an image, and a second position for printing, reproducing a copied image, and receiving facsimiles. In the first position, the path of a single sheet of paper is impeded by the scan head mechanism. In the second position, a sheet of paper onto which an image has been transferred by dot matrix, ink, or laser printing, can move through the multipurpose information transfer device unimpeded. The invention contemplates a single stationary path to which information transfer functions are added and taken away, instead of multiple paths to accommodate stationary information transfer functions.
    Type: Grant
    Filed: October 20, 1996
    Date of Patent: June 2, 1998
    Assignee: Apple Computer, Inc.
    Inventors: John Avery Howard, William Ronald George, Donald S. Minami, Lan Hao-Jui, Tsai Cheng-Liang