Patents by Inventor Chih-Tsai Wang

Chih-Tsai 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).

  • Patent number: 9276347
    Abstract: A socket cover contains: a cap, a first lid, and a second lid. The cap has an orifice defined thereon, the first lid is disposed on a first side of the orifice of the cap and covers a first part of the orifice, and the first lid has a cutout defined on a non-closed position thereof opposite to the orifice of the cap. The second lid is disposed on a second side of the orifice of the cap and covers a second part of the orifice which is not covered by the first lid, and the second lid has a projection corresponding to the cutout of the first lid. Thereby, when a plug is inserted in a socket, the cap is positioned stably to enhance using safety and aesthetics appearance.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: March 1, 2016
    Inventor: Chih-Tsai Wang
  • Publication number: 20150104984
    Abstract: A socket cover contains: a cap, a first lid, and a second lid. The cap has an orifice defined thereon, the first lid is disposed on a first side of the orifice of the cap and covers a first part of the orifice, and the first lid has a cutout defined on a non-closed position thereof opposite to the orifice of the cap. The second lid is disposed on a second side of the orifice of the cap and covers a second part of the orifice which is not covered by the first lid, and the second lid has a projection corresponding to the cutout of the first lid. Thereby, when a plug is inserted in a socket, the cap is positioned stably to enhance using safety and aesthetics appearance.
    Type: Application
    Filed: October 7, 2014
    Publication date: April 16, 2015
    Inventor: Chih-Tsai WANG
  • Publication number: 20140062645
    Abstract: A transformer structure, configured with an assembly of overlapped plural of laminations, a roller and a coil, to provide a transformer with better function of permeability, less weight, lower cost, higher coupling efficiency of electrical energy, and a rapid winding process which could be applied in a variety types of transformer structure or similar products.
    Type: Application
    Filed: March 14, 2013
    Publication date: March 6, 2014
    Inventors: Hui-San CHEN, Chih-Tsai Wang, Chih-Ping Kung
  • Publication number: 20110169408
    Abstract: A circuit structure of light-emitting diode (LED) lamp includes a combination of at least one LED lamp assembly, a current-limit resistor, a bridge rectifier, a capacitor set, a circuit board, and an electrical connector, by which each LED of at least one LED lamp assembly is at one end in series with a serially-connected resistor individually and then each serial-connected by-pass resistor is in parallel with the former-mentioned electrical structure to form a LED lamp assembly. The present invention provides a better solution which conventional LED lamp cannot be configured with a high voltage power supply. Further, the hardware lay-out of the circuit structure allows for direct connection with an external power source of AC 100-380V, which is fed through the bridge rectifier for regulation and conversion into direct current to be directly coupled to and used by the LED lamp assembly without a voltage-down transformer.
    Type: Application
    Filed: May 25, 2010
    Publication date: July 14, 2011
    Inventors: Hui San Chen, Chih Tsai Wang
  • Publication number: 20070275597
    Abstract: An electrical connector assembly includes two interconnected electrical connectors. Each of the electrical connectors includes a terminal seat, a terminal, and a retaining ring. The terminal seat is made of a plastic material, and has an inward flange extending radially and inwardly therefrom and defining an insert hole. The terminal includes a connecting section extending through the insert hole, and front and rear outward flanges extending radially and outwardly therefrom. The retaining ring is sleeved on the connecting section and disposed between the front and rear outward flanges. The inward flange of the terminal seat has front and rear side surfaces abutting respectively against an abutment surface of the retaining ring and the rear outward flange so as to prevent movement of the terminal within the terminal seat.
    Type: Application
    Filed: January 19, 2007
    Publication date: November 29, 2007
    Inventor: Chih-Tsai Wang