Patents by Inventor Ching Hsi Tseng

Ching Hsi Tseng 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).

  • Height adjustment device having a screw axially moveable relative to a rotary plate adapted in a projection apparatus and projection apparatus comprising the height adjustment device
    Patent number: 7851741
    Abstract: The present invention is related to a height adjustment device adapted in the projection apparatus and projection apparatus comprising the height adjustment device. The projection apparatus has a body and a height adjustment device. The height adjustment device comprises at least one connecting element, a rotary plate, and a screw. The connecting element is connected to the body. The rotary plate meshes with the connecting device for relative rotation, and a threaded hole is formed at the center of the rotary plate. The screw is inserted through the threaded hole to enable the rotary plate to make a linear up-down movement along the axis of the screw when the rotary plate rotates around the screw. Thus, the height adjustment device of the present invention enables a height adjustment without requiring strenuous effort and damaging the projection apparatus.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: December 14, 2010
    Assignee: Delta Electronics, Inc.
    Inventor: Ching Hsi Tseng
  • Height Adjustment Device Adapted in a Projection Apparatus and Projection Apparatus Comprising the Height Adjustment Device
    Publication number: 20090032654
    Abstract: The present invention is related to a height adjustment device adapted in the projection apparatus and projection apparatus comprising the height adjustment device. The projection apparatus has a body and a height adjustment device. The height adjustment device comprises at least one connecting element, a rotary plate, and a screw. The connecting element is connected to the body. The rotary plate meshes with the connecting device for relative rotation, and a threaded hole is formed at the center of the rotary plate. The screw is inserted through the threaded hole to enable the rotary plate to make a linear up-down movement along the axis of the screw when the rotary plate rotates around the screw. Thus, the height adjustment device of the present invention enables a height adjustment without requiring strenuous effort and damaging the projection apparatus.
    Type: Application
    Filed: June 13, 2008
    Publication date: February 5, 2009
    Applicant: DELTA ELECTRONICS, INC.
    Inventor: Ching Hsi Tseng