Patents by Inventor Jung Woong Choi

Jung Woong Choi 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).

  • Publication number: 20120022734
    Abstract: The present disclosure relates to a hybrid working vehicle which determines the change of load by using a displacement of a flyweight or flyball in a governor, and controls a motor-generator according to the change of load, and a control method thereof. The hybrid working vehicle detects the change of load based on the displacement of the flyweight or flyball measured by a displacement measuring device, operates a motor-generator as a motor to supplement the power in a case where the load increases, and operates the motor-generator as an electric generator to collect energy in a case where the load decreases.
    Type: Application
    Filed: June 29, 2011
    Publication date: January 26, 2012
    Inventors: Jung Woong CHOI, Sang Hyun KIM, Yong Joo KIM
  • Publication number: 20110259655
    Abstract: Provided is a tractor having a hydraulic lifting apparatus, wherein, assuming that a lift of the hydraulic lifting apparatus is P (N), a discharge flow rate of a hydraulic pump is Q (m3/s), a horsepower of an engine is H (N·m/s), an axial distance is L (m), and a total weight of the tractor is W (N), the following Equation is satisfied: 100×H/Q<P<L×W/1.5.
    Type: Application
    Filed: March 29, 2011
    Publication date: October 27, 2011
    Inventors: Jung Woong CHOI, Chul Hwan CHOI
  • Publication number: 20100185369
    Abstract: This disclosure relates to an automatic transmission, and more particularly, to an automatic transmission which alleviates a gear shifting shock generated during a forward/reverse gear shifting operation by controlling a clutch actuator to operate a clutch and interrupting a transmission of power generated from an engine during the forward/reverse gear shifting operation of a vehicle.
    Type: Application
    Filed: January 19, 2010
    Publication date: July 22, 2010
    Inventors: Jung-Woong Choi, Sang-Heon Lee, Sang-Hyun Kim
  • Patent number: 6477811
    Abstract: A method of construction of a damp-proof basement includes disposing a water-permeable palette layer on a bottom surface of the interior of the basement and spaced from an outer wall of the basement, disposing a water-impermeable vent layer over the palette layer, disposing a reinforced-concrete slab on the vent layer and spaced from the outer wall, and disposing an inner wall at a periphery of the concrete slab and spaced from the outer wall. A damp-proof basement construction includes a water-permeable palette layer, disposed on a bottom surface of the interior of the basement, spaced from an outer wall of the basement. A water-impermeable vent layer is disposed over the palette layer. A reinforced-concrete slab is disposed on the vent layer, spaced from the outer wall. An inner wall is disposed at a periphery of the concrete slab, spaced from the outer wall.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: November 12, 2002
    Inventor: Jung Woong Choi
  • Patent number: 6032429
    Abstract: A damp-proof insulation brick cover having an empty space at the bottom of the dampproof brick cover formed of rectangular hexahedrons, formed as a unit including a pair of side walls, a pair of longitudinal walls, and an upper panel part. At certain intervals, a plurality of protruding parts are formed under the whole upper panel, wherein an insulation space is formed between said upper panel and upper part of said brick when the brick is inserted into the inner space of the brick cover.Slanted protrusions are installed between vertical protrusions at an upper part of both ends of the longitudinal walls of the brick covers, and a slanted protrusion is formed in one of said longitudinal walls, at the same height as the side wall slanted protrusion.When applied to the bottom part of a protection wall, the floor of which has lots of water permeating from underground, the brick cover prevents capillary action of water in the walls.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: March 7, 2000
    Inventor: Jung Woong Choi