Patents by Inventor Dong Chu

Dong Chu 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: 7118420
    Abstract: A dual-slot card connector includes a flat base having a first insertion slot and a second insertion slots partly overlapping and communicating with each other for receiving different cards, and a pair of the receiving grooves and a pair of the first retaining portions; a movable plate mounted to the overlap of the first and second insertion slots and movably mounted in the receiving grooves and having a main body, a pair of receiving portions mounted to bilateral sides of the main body, a pair of second retaining portions in connection with the first retaining portions, and a plurality of terminal tunnels formed on the main body; a pair of springy strips mounted on the base and contacting against the movable plate; a cover shell covered on the base; and a plurality of contact terminals mounted on the base and partly received in the terminal tunnels.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: October 10, 2006
    Assignee: Tai-Sol Electronics Co., Ltd.
    Inventors: Yaw-Huey Lai, Dong-Chu Feng
  • Patent number: 7040928
    Abstract: A terminal-protective card connector includes a shell and a pressing member. The shell includes at least two (first and second) groups of terminals mounted thereto, and two upright guiding portions formed at two internal sidewalls thereof. The pressing member includes two guided parts formed at two ends thereof and slidably mounted to the two guiding portions, a plurality of through holes formed therein, and at least one bevel formed at a front end thereof. The second group of terminals has contact portions running through bottom sides and then top sides of the through holes respectively to support the terminals of the second group. Thus, a specific group of terminals can be optionally pressed to avoid deformation or short circuit resulted from impact of or contact with uncorresponding cards to be protected.
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: May 9, 2006
    Assignee: Tai-Sol Electronics Co., Ltd.
    Inventors: Yaw-Huey Lai, Dong Chu Feng
  • Publication number: 20060005798
    Abstract: A variable intake system of a vehicle includes an intake manifold having a runner, an opening/closing part for varying the runner length of the intake manifold, an actuator for driving the opening/closing part, and a vacuum part forming a vacuum chamber for driving the actuator. The vacuum part is disposed on an upper portion of the intake manifold such that noise from the engine may be decreased.
    Type: Application
    Filed: December 28, 2004
    Publication date: January 12, 2006
    Inventor: Dong Chu
  • Patent number: 5969342
    Abstract: Displacement is measured using two overlaid parallel optic gratings as the sensing elements of a sensor head. Optic fibers are employed as the transmission media between the sensor head and a central signal processing unit. The light intensity signals of Moire fringes generated by the overlaid optic gratings are transmitted through optic fibers to the central signal processing unit. By digitally counting the number of Moire fringes, the changes in both direction and magnitude of the displacement are measured. A number of sensor heads employing the overlaid optic gratings as sensing elements are multiplexed through a common optic fiber link to comprise a multipoint sensor system. By similarly modifying the sensor head, this sensor system also measures other physical quantities such as strain, acceleration, and pressure.
    Type: Grant
    Filed: May 30, 1997
    Date of Patent: October 19, 1999
    Inventors: Maria Q. Feng, Dong Chu