Patents by Inventor Chun Jin Yoon

Chun Jin Yoon 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: 9306272
    Abstract: An apparatus for fixing a satellite antenna for a construction machine is disclosed, which can adjust the height of the satellite antenna that is installed outside a cab to receive a signal of a satellite receiver installed inside the cab when the equipment is transported or operated in a workshop having a low ceiling.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: April 5, 2016
    Assignee: VOLVO CONSTRUCTION EQUIPMENT AB
    Inventor: Chun-Jin Yoon
  • Patent number: 9021764
    Abstract: An apparatus for fixing the rear glass of a cab on construction machinery is provided. The apparatus includes a window frame forming a cab window frame; a weather strip coupled to the window frame to seal a gap between the window frame and the rear glass of the cab; a glass interior fixing portion including an engagement portion inserted and engaged between the window frame and the weather strip, a body portion extending from the engagement portion at right angles and having a groove and a glass support portion supporting the rear glass of the cab; a glass exterior fixing portion engaged with the glass support portion of the glass interior fixing portion to support the rear glass of the cab; and a stopper having one side fixed to the window frame to support the rear glass of the cab.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: May 5, 2015
    Assignee: Volvo Construction Equipment AB
    Inventor: Chun-Jin Yoon
  • Publication number: 20140022129
    Abstract: An apparatus for fixing a satellite antenna for a construction machine is disclosed, which can adjust the height of the satellite antenna that is installed outside a cab to receive a signal of a satellite receiver installed inside the cab when the equipment is transported or operated in a workshop having a low ceiling.
    Type: Application
    Filed: April 22, 2011
    Publication date: January 23, 2014
    Applicant: VOLVO CONSTRUCTION EQUIPMENT AB
    Inventor: Chun-Jin Yoon
  • Publication number: 20130125483
    Abstract: An apparatus for fixing the rear glass of a cab on construction machinery is provided. The apparatus includes a window frame forming a cab window frame; a weather strip coupled to the window frame to seal a gap between the window frame and the rear glass of the cab; a glass interior fixing portion including an engagement portion inserted and engaged between the window frame and the weather strip, a body portion extending from the engagement portion at right angles and having a groove and a glass support portion supporting the rear glass of the cab; a glass exterior fixing portion engaged with the glass support portion of the glass interior fixing portion to support the rear glass of the cab; and a stopper having one side fixed to the window frame to support the rear glass of the cab.
    Type: Application
    Filed: July 28, 2010
    Publication date: May 23, 2013
    Applicant: VOLVO CONSTRUCTION EQUIPMENT AB
    Inventor: Chun-Jin Yoon
  • Publication number: 20110135434
    Abstract: Construction equipment having unified vibration absorber and ROPS is provided, which can protect an operator by restricting the displacement of a cab through the ROPS when an excessive load is applied to the cab due to a rollover accident or the like of the equipment during traveling or working of the equipment.
    Type: Application
    Filed: December 2, 2010
    Publication date: June 9, 2011
    Inventor: Chun Jin YOON
  • Publication number: 20110135433
    Abstract: Construction equipment having a grease injection device within a cab is provided, which can supply lubricating grease to a rolling contact portion between an outer ring and an inner ring of a swing device using a grease gun within the cab.
    Type: Application
    Filed: December 2, 2010
    Publication date: June 9, 2011
    Inventor: Chun Jin YOON
  • Patent number: 7823680
    Abstract: A console box for heavy equipment having a safety bar with a function sound device is provided, which generates a function sound when an operator rotates a safety bar to be in a horizontal/vertical direction, so that the operator can accurately recognize the rotation state of the safety bar.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: November 2, 2010
    Assignee: Volvo Construction Equipment Holdings Sweden AB
    Inventor: Chun Jin Yoon
  • Patent number: 7722008
    Abstract: A load support apparatus for a cabin of heavy equipment is capable of overcoming the problems that a vibration absorption apparatus is very efficient for absorbing vibrations transferred from an upper frame to a cabin when heavy equipment runs or does work but is less efficient with respect to the left and right direction vibrations. The load support apparatus of a cabin of heavy equipment comprises a vibration prevention member which is engaged with an outer side of the cabin, a support bracket which is installed on an upper side of the upper frame and receives the vibration prevention member therein, and an elastic member which is installed between an outer side of the vibration prevention member and an inner side of the support bracket and absorbs the left and right direction vibrations which are transferred from the upper frame to the cabin.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: May 25, 2010
    Assignee: Volvo Construction Equipment Holding Sweden AB
    Inventor: Chun Jin Yoon
  • Publication number: 20080316016
    Abstract: A console box for heavy equipment having a safety bar with a function sound device is provided, which generates a function sound when an operator rotates a safety bar to be in a horizontal/vertical direction, so that the operator can accurately recognize the rotation state of the safety bar.
    Type: Application
    Filed: June 10, 2008
    Publication date: December 25, 2008
    Inventor: Chun Jin Yoon
  • Patent number: 7427097
    Abstract: An operator protective structure for a construction machine is designed to prevent a heavy object or a cabin of the construction machine deformed during the overturning or a drop collision from injuring a body of the operator. An operator protective structure includes a front supporting frame provided with a pair of front supporting rods vertically installed on one end of the upper frame, a rear supporting frame provided with a plurality of rear supporting rods vertically installed on the other end of the upper frame to encompass the cabin, and a top supporting frame defined by a pair of top supporting rods extended from an upper end of the front supporting frame to an upper end of the rear supporting frame and provided with a plurality of auxiliary beams between the top supporting rods.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: September 23, 2008
    Assignee: Volvo Construction Equipment Holding Sweden AB
    Inventor: Chun Jin Yoon
  • Patent number: 7165472
    Abstract: A control lever safety apparatus for a heavy equipment which is capable of preventing an operation of a work apparatus when a control lever is operated or touched in a state that an equipment is started, in such a manner that a safety lever is tilted in a lower direction in the case that a consol box installed in a side surface of a driver's seat is tilted.
    Type: Grant
    Filed: July 12, 2005
    Date of Patent: January 23, 2007
    Assignee: Volvo Construction Equipment Holding Sweden AB
    Inventors: Chun Ho Jo, Chun Jin Yoon
  • Patent number: 7131686
    Abstract: An operator protective structure equipped on a cabin of construction machine is capable of moving the cabin along with a front guard by directly installing the front guard on the cabin fixed to an upper frame to protect the operator from an object penetrating into the front of the cabin. The cabin is provided with a bottom plate on a bottom thereof, mounted on an upper frame installed on a lower driving body and independently vibrated relative to the upper frame by connecting the bottom plate to the upper frame through vibration absorbing devices. The operator protective structure includes a front guide provided with a top bar and a bottom bar and installed up and down in front of the cabin to protect the cabin from objects penetrating into a front of the cabin and a top guide formed long on a ceiling of the cabin in a front and rear direction to protect the cabin from falling objects.
    Type: Grant
    Filed: November 3, 2005
    Date of Patent: November 7, 2006
    Assignee: Volvo Construction Equipment Holding Sweden AB
    Inventors: Chun Ho Jo, Chun Jin Yoon
  • Publication number: 20060071499
    Abstract: Disclosed is a load support apparatus of a driving room for a construction equipment in which a fitting boss is previously provided at the base of a vehicle frame to simply fix and detach the vehicle frame without disassembling the driving room in case that the vehicle frame has a closed structure, and the regulation member screwed onto the fitting boss is fixed to a bottom plate from the bottom frame of the driving room. The load support apparatus includes the vehicle frame provided in a lower carriage, the driving room loaded in the vehicle frame, having the bottom frame at the lower portion, a vibration damper provided between the vehicle frame and the bottom frame, elastically supporting the driving room, and a regulation member fixed to the vehicle frame from the bottom frame of the driving room even after assembly of the driving room is finished.
    Type: Application
    Filed: March 28, 2005
    Publication date: April 6, 2006
    Inventor: Chun Jin Yoon
  • Patent number: 6971279
    Abstract: A control lever safety apparatus for preventing operation of a work apparatus when a control lever is operated or touched in an equipment started state has a safety lever and consol box tilting lever rotatably fixed to a first support in which a consol box is fixed, an operation switch assembly connected with the consol box tilting lever on a link movement method to support the safety lever in a horizontal direction and tilt the safety lever in a lower direction when the consol box tilting lever is rotated for thereby disconnecting power, and a latch assembly connected with the operation switch assembly on a link movement method to tilt the consol box in an upper direction when the consol box tilting lever is rotated for also thereby disconnecting the power.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: December 6, 2005
    Assignee: Volvo Construction Equipment Holding Sweden AB
    Inventors: Chun Ho Jo, Chun Jin Yoon
  • Publication number: 20050247152
    Abstract: The present invention relates to a control lever safety apparatus for a heavy equipment which is capable of preventing an operation of a work apparatus when a control lever is operated or touched in a state that an equipment is started, in such a manner that a safety lever is tilted in a lower direction in the case that a consol box installed in a side surface of a driver's seat is tilted.
    Type: Application
    Filed: July 12, 2005
    Publication date: November 10, 2005
    Inventors: Chun Ho Jo, Chun Jin Yoon
  • Patent number: 6810980
    Abstract: The present invention relates to a driver protection structure and a device supporting the same which secure driver's safety according to the international standardization organization when collided with a falling object and upon equipment's rollovers, comprising a first stopper which allows a driver's cabin and the driver protection structure mounted over the driver's cabin to move in a vertical direction and restricts the driver's cabin to move in a horizontal direction, and a second stopper which allows the driver's cabin to move in the vertical direction and restricts the driver's cabin to be lifted when a load is applied to the driver's cabin from external.
    Type: Grant
    Filed: August 5, 2002
    Date of Patent: November 2, 2004
    Assignee: Volvo Construction Equipment Holding Sweden AB
    Inventors: Chun Ho Jo, Chun Jin Yoon
  • Publication number: 20040154427
    Abstract: The present invention relates to a control lever safety apparatus for a heavy equipment which is capable of preventing an operation of a work apparatus when a control lever is operated or touched in a state that an equipment is started, in such a manner that a safety lever is tilted in a lower direction in the case that a consol box installed in a side surface of a driver's seat is tilted.
    Type: Application
    Filed: June 24, 2003
    Publication date: August 12, 2004
    Applicant: VOLVO CONSTRUCTION EQUIPMENT HOLDING SWEDEN AB
    Inventors: Chun Ho Jo, Chun Jin Yoon
  • Publication number: 20030111281
    Abstract: The present invention relates to a driver protection structure and a device supporting the same which secure driver's safety according to the international standardization organization when collided with a falling object and upon equipment's rollovers, comprising a first stopper which allows a driver's cabin and the driver protection structure mounted over the driver's cabin to move in a vertical direction and restricts the driver's cabin to move in a horizontal direction, and a second stopper which allows the driver's cabin to move in the vertical direction and restricts the driver's cabin to be lifted when a load is applied to the driver's cabin from external.
    Type: Application
    Filed: August 5, 2002
    Publication date: June 19, 2003
    Inventors: Chun Ho Jo, Chun Jin Yoon