Patents by Inventor Hyeong Ho Kim

Hyeong Ho Kim 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: 10653900
    Abstract: Disclosed is a lifesaving system using a drone and a lifesaving method using the lifesaving system. The lifesaving system includes: a lifesaving drone provided with a parachute, the drone approaching a victim by being remotely controlled and installed in the victim, and assisting rescuing the victim from a high-rise building by operating the parachute; and a disaster management center disposing a rescuing vehicle to a disaster occurrence area and remotely controlling the lifesaving drone when a disaster report is received, or a disaster occurrence area is recognized.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: May 19, 2020
    Assignee: EDUN-ENG CO., LTD.
    Inventors: Hyeong Ho Kim, Chul Choi
  • Publication number: 20190060679
    Abstract: Disclosed is a lifesaving system using a drone and a lifesaving method using the lifesaving system. The lifesaving system includes: a lifesaving drone provided with a parachute, the drone approaching a victim by being remotely controlled and installed in the victim, and assisting rescuing the victim from a high-rise building by operating the parachute; and a disaster management center disposing a rescuing vehicle to a disaster occurrence area and remotely controlling the lifesaving drone when a disaster report is received, or a disaster occurrence area is recognized.
    Type: Application
    Filed: November 13, 2017
    Publication date: February 28, 2019
    Inventors: Hyeong Ho KIM, Chul CHOI
  • Patent number: 7356991
    Abstract: A hydraulic control device of an excavator is provided for controlling combined operation of boom-raising and swing on a slope. A swing priority valve (20) is provided on a pressured fluid supply line (8) that connects a first hydraulic pump (1) to a boom high-speed control valve (7). If an excavator performs its tasks on a slope, the swing priority valve (20) is automatically shifted under a control of an electronic controller (28) into a throttling position to thereby restrict hydraulic flow through the boom high-speed control valve (7) so that an increased amount of hydraulic flow can be supplied to a swing motor (14), thus increasing a swing operating pressure more rapidly than a boom operating pressure and consequently facilitating combined operation of boom-raising and swing on a slope.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: April 15, 2008
    Assignee: Doosan Intracore Co., Ltd.
    Inventors: Hyeong Ho Kim, Won Sun Sohn
  • Patent number: 7290390
    Abstract: A travel control device enables a crawler type hydraulic excavator to start slowly regardless of the preset speed ratio whenever the manipulation amount of a manual travel control device is small. The travel control device includes left and right travel motors respectively provided with speed changing mechanisms, a high speed shifting valve provided on a high speed signal line for cutting off or transmitting a high speed signal pressure to the speed changing mechanisms, a travel signal detection means for detecting a travel control signal pressure outputted from manual travel control devices. A shutoff valve is provided on the high speed signal line for closing or opening the high speed signal line to keep the speed changing mechanisms in a low speed condition or a high speed condition depending on the magnitude of the travel control signal pressure supplied from the travel signal detection means.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: November 6, 2007
    Assignee: Doosan Infracore Co., Ltd.
    Inventor: Hyeong Ho Kim
  • Patent number: 7281373
    Abstract: A fluid pump control device for wheel loaders includes an engine for driving an axle through a transmission, a main pump, a variable-displacement steering pump with a pump regulator, an auxiliary pump, an electronic proportional control valve provided on a discharge quantity control signal line leading to the pump regulator for variably controlling a pilot pressure conveyed the pump regulator, a hydraulic load detector for detecting a real hydraulic load (Px), an engine revolution detector for detecting the number of revolution (N1) of the engine, a transmission revolution detector for detecting the number of output shaft revolution (N2) of the transmission. A controller is adapted to control the electronic proportional control valve and hence the fluid discharge quantity of the steering pump, based on the real hydraulic load (Px), the number of revolution (N1) of the engine and the number of output shaft revolution (N2) of the transmission.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: October 16, 2007
    Assignee: Doosan Infracore Co., Ltd.
    Inventor: Hyeong Ho Kim
  • Publication number: 20060156716
    Abstract: A travel control device enables a crawler type hydraulic excavator to start slowly regardless of the preset speed ratio whenever the manipulation amount of a manual travel control device is small. The travel control device includes left and right travel motors respectively provided with speed changing mechanisms, a high speed shifting valve provided on a high speed signal line for cutting off or transmitting a high speed signal pressure to the speed changing mechanisms, a travel signal detection means for detecting a travel control signal pressure outputted from manual travel control devices. A shutoff valve is provided on the high speed signal line for closing or opening the high speed signal line to keep the speed changing mechanisms in a low speed condition or a high speed condition depending on the magnitude of the travel control signal pressure supplied from the travel signal detection means.
    Type: Application
    Filed: December 29, 2005
    Publication date: July 20, 2006
    Inventor: Hyeong Ho Kim