Patents by Inventor Woo Young Jee

Woo Young Jee 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: 11572115
    Abstract: A tread pattern for a vehicle track, such as an endless track for earth-moving equipment, comprises a plurality of blocks. Each block includes two lateral traction portions extending in substantially opposite directions. The two lateral traction portions are longitudinally aligned and each define a pair of walls defining a plurality of steps. In some examples, each lateral traction portion may define an L-shape. For example, the lateral traction portions of each block may define a protrusion to define the “L” shape, and, in some examples, the protrusions may extend in opposite longitudinal directions. In some examples, the lateral traction portions of each block may be the same shape, where one lateral traction portion may be oriented at about 180 degrees relative to the other lateral traction portion.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: February 7, 2023
    Assignee: SRJ, Inc.
    Inventor: Woo Young Jee
  • Patent number: 11518457
    Abstract: An endless track for a tracked vehicle includes a track body and a plurality of cores at least partially embedded the track body, each core having at least one roller surface configured to contact an outer flange of a track roller when the track roller is engaged with an inner surface of the track body, and at least one protrusion configured to contact an inner flange of the track roller when the track roller is engaged with the inner surface of the track body. The track roller is configured to simultaneously contact a first core and an adjacent second core. A distance between the first core and the second core is selected such that about 0.2% of a flange diameter of the track roller extends perpendicular to an axis between a first contact point on the first core and a second contact point on the second core.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: December 6, 2022
    Assignee: SRI, Inc.
    Inventor: Woo Young Jee
  • Patent number: 11136078
    Abstract: In some examples, a shoe pad for a grouser of a vehicle track defines a slot configured to receive a bracket that is configured to attach the shoe pad to a grouser. For example, a first arm of a bracket may be inserted into the slot and a second arm of the bracket may be configured to contact an interior side of a grouser of a vehicle track to attach the shoe pad to the grouser. In some examples, the shoe pad and the bracket may be held to the grouser with the aid of a bolt, which bolt may not extend through the grouser, but, rather, may merely engage with an exterior side of the grouser. In this way, the shoe pad may be able to be attached to a grouser without requiring one or more holes to be present in the grouser, while still providing a relatively tight fit with the grouser the shoe pad is configured to cover.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: October 5, 2021
    Assignee: Jees LLC
    Inventors: Woo Young Jee, Dennis Hyunsuk Jee
  • Patent number: 11097794
    Abstract: A suspension system for a tracked vehicle includes a track roller configured to contact and roll relative to an inner surface of a track. In some examples, the track roller includes an axle member, a roller mounting bracket mechanically connected to the axle member, a frame mounting bracket configured to attach to a frame of the tracked vehicle, and a plurality of coil springs disposed between the roller mounting bracket and the frame mounting bracket. The plurality of coil springs is configured to reduce an impact force transferred from the track roller to the frame of the tracked vehicle.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: August 24, 2021
    Assignee: SRJ, Inc.
    Inventor: Woo Young Jee
  • Publication number: 20210016847
    Abstract: A tread pattern for a vehicle track, such as an endless track for earth-moving equipment, comprises a plurality of blocks. Each block includes two lateral traction portions extending in substantially opposite directions. The two lateral traction portions are longitudinally aligned and each define a pair of walls defining a plurality of steps. In some examples, each lateral traction portion may define an L-shape. For example, the lateral traction portions of each block may define a protrusion to define the “L” shape, and, in some examples, the protrusions may extend in opposite longitudinal directions. In some examples, the lateral traction portions of each block may be the same shape, where one lateral traction portion may be oriented at about 180 degrees relative to the other lateral traction portion.
    Type: Application
    Filed: July 17, 2019
    Publication date: January 21, 2021
    Inventor: Woo Young Jee
  • Publication number: 20200298919
    Abstract: An endless track for a tracked vehicle includes a track body and a plurality of cores at least partially embedded the track body, each core having at least one roller surface configured to contact an outer flange of a track roller when the track roller is engaged with an inner surface of the track body, and at least one protrusion configured to contact an inner flange of the track roller when the track roller is engaged with the inner surface of the track body. The track roller is configured to simultaneously contact a first core and an adjacent second core. A distance between the first core and the second core is selected such that about 0.2% of a flange diameter of the track roller extends perpendicular to an axis between a first contact point on the first core and a second contact point on the second core.
    Type: Application
    Filed: March 20, 2019
    Publication date: September 24, 2020
    Inventor: Woo Young Jee
  • Publication number: 20200262499
    Abstract: A suspension system for a tracked vehicle includes a track roller configured to contact and roll relative to an inner surface of a track. In some examples, the track roller includes an axle member, a roller mounting bracket mechanically connected to the axle member, a frame mounting bracket configured to attach to a frame of the tracked vehicle, and a plurality of coil springs disposed between the roller mounting bracket and the frame mounting bracket. The plurality of coil springs is configured to reduce an impact force transferred from the track roller to the frame of the tracked vehicle.
    Type: Application
    Filed: February 14, 2019
    Publication date: August 20, 2020
    Inventor: Woo Young Jee
  • Publication number: 20200031410
    Abstract: In some examples, a shoe pad for a grouser of a vehicle track defines a slot configured to receive a bracket that is configured to attach the shoe pad to a grouser. For example, a first arm of a bracket may be inserted into the slot and a second arm of the bracket may be configured to contact an interior side of a grouser of a vehicle track to attach the shoe pad to the grouser. In some examples, the shoe pad and the bracket may be held to the grouser with the aid of a bolt, which bolt may not extend through the grouser, but, rather, may merely engage with an exterior side of the grouser. In this way, the shoe pad may be able to be attached to a grouser without requiring one or more holes to be present in the grouser, while still providing a relatively tight fit with the grouser the shoe pad is configured to cover.
    Type: Application
    Filed: July 24, 2018
    Publication date: January 30, 2020
    Inventors: Woo Young Jee, Dennis Hyunsuk Jee
  • Patent number: 10400427
    Abstract: A flex pin includes a compressible member positioned between first and second rigid members configured to be installed in a tooth and shank assembly. The first rigid member includes a locking recess defined by a front wall, a locking major surface, and a rear portion including a back wall and back gradient. At least one of the first or second rigid members includes a bonding recess configured to receive a portion of the compressible member.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: September 3, 2019
    Assignee: SRJ, Inc.
    Inventor: Woo Young Jee
  • Publication number: 20190233032
    Abstract: In some examples, a vehicle track includes a track body and a plurality of cores, where each core of the plurality of cores is at least partially embedded within the track body. Each core of the plurality of cores may include a body including a first end and a second end opposite the first end. The body may have a body width measured along a first axis extending between the first and second ends, and a body length measured along a second axis orthogonal to the first axis. Each core of the plurality of cores also may include a first edge portion extending from the first end of the body and a second edge portion extending from the second end of the body, where each of the first and second edge portions defines at least one protrusion that extends from a major surface of the respective body. The at least one protrusion may have a protrusion length that is less than the body length.
    Type: Application
    Filed: January 29, 2019
    Publication date: August 1, 2019
    Inventor: Woo Young Jee
  • Patent number: 10300967
    Abstract: A system includes a track and a track roller. In some examples, the track roller includes an axle member and at least three flange members. The axle member defines a first axis. The at least three flange members extend from the axle member substantially perpendicularly to the first axis. A first portion of the axle member is disposed between a first pair of adjacent flange members of the at least three flange members. A second portion of the axle member is disposed between a second pair of adjacent flange members of the at least three flange members. Each of at least two of the at least three flange members and the first and second portions are configured to contact the track when the track is mounted on a vehicle suspension system including the track roller.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: May 28, 2019
    Assignee: SRJ, Inc.
    Inventor: Woo Young Jee
  • Publication number: 20180347155
    Abstract: A flex pin includes a compressible member positioned between first and second rigid members configured to be installed in a tooth and shank assembly. The first rigid member includes a locking recess defined by a front wall, a locking major surface, and a rear portion including a back wall and back gradient. At least one of the first or second rigid members includes a bonding recess configured to receive a portion of the compressible member.
    Type: Application
    Filed: May 17, 2018
    Publication date: December 6, 2018
    Inventor: Woo Young Jee
  • Patent number: 9855985
    Abstract: A tread pattern for a vehicle track, such as an endless track for earth moving equipment, comprises a plurality of blocks. Each block includes two lateral traction portions extending from a center traction portion in substantially opposite directions. The two lateral traction portions are longitudinally aligned. In some examples, each lateral traction portion may define a T-shape. For example, the lateral traction portions of each block may define a protrusion to define the “T” shape, and, in some examples, the protrusions may extend in opposite longitudinal directions. In some examples, the lateral traction portions of each block may be the same shape, where one lateral traction portion may be oriented at about 180 degrees relative to the other lateral traction portion.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: January 2, 2018
    Assignee: SRJ, Inc.
    Inventors: Woo Young Jee, Dennis H. Jee, Jay Lee
  • Publication number: 20170361884
    Abstract: A system comprises a track a track roller. In some examples, the track roller comprises an axle member and at least three flange members. The axle member defines a first axis. The at least three flange members extend from the axle member substantially perpendicularly to the first axis. A first portion of the axle member is disposed between a first pair of adjacent flange members of the at least three flange members. A second portion of the axle member is disposed between a second pair of adjacent flange members of the at least three flange members. Each of at least two of the at least three flange members and the first and second portions are configured to contact the track when the track is mounted on a vehicle suspension system including the track roller.
    Type: Application
    Filed: June 17, 2016
    Publication date: December 21, 2017
    Inventor: Woo Young Jee
  • Patent number: 9840829
    Abstract: A flex pin includes a compressible member disposed between first and second rigid members configured to be installed in a tooth and shank assembly. The first rigid member includes a locking recess defined by a front wall, a locking major surface, and a back gradation defining at least one step. At least one of the first or second rigid members includes a bonding recess configured to receive a portion of the compressible member.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: December 12, 2017
    Assignee: SRJ, Inc.
    Inventor: Woo Young Jee
  • Publication number: 20170152647
    Abstract: A flex pin includes a compressible member disposed between first and second rigid members configured to be installed in a tooth and shank assembly. The first rigid member includes a locking recess defined by a front wall, a locking major surface, and a back gradation defining at least one step. At least one of the first or second rigid members includes a bonding recess configured to receive a portion of the compressible member.
    Type: Application
    Filed: December 1, 2015
    Publication date: June 1, 2017
    Inventor: Woo Young Jee
  • Publication number: 20160362151
    Abstract: A tread pattern for a vehicle track, such as an endless track for earth moving equipment, comprises a plurality of blocks. Each block includes two lateral traction portions extending from a center traction portion in substantially opposite directions. The two lateral traction portions are longitudinally aligned. In some examples, each lateral traction portion may define a T-shape. For example, the lateral traction portions of each block may define a protrusion to define the “T” shape, and, in some examples, the protrusions may extend in opposite longitudinal directions. In some examples, the lateral traction portions of each block may be the same shape, where one lateral traction portion may be oriented at about 180 degrees relative to the other lateral traction portion.
    Type: Application
    Filed: June 11, 2015
    Publication date: December 15, 2016
    Inventors: Woo Young Jee, Dennis H. Jee, Jay Lee