Patents by Inventor KyungChul JOE

KyungChul JOE 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: 12158206
    Abstract: A torsion spring for an oil pump chain tensioner for use in an engine. The torsion spring has: a second end; a leg connected to the second end through a hook bend; an outer coil connected to the leg having an outer coil outer circumference and an outer coil inner circumference; a first inner coil connected to the outer coil, the first inner coil having a first inner coil outer circumference and a first inner coil inner circumference, the outer coil inner circumference being adjacent to the first inner coil outer circumference; and a second inner c-shaped coil connected to the first inner coil through a bend back loop, the second inner coil having a second inner coil outer circumference and a second inner coil inner coil circumference and terminating in a first end, where the second inner coil outer circumference and the first coil inner circumference define a gap.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: December 3, 2024
    Assignee: BorgWarner Inc.
    Inventor: KyungChul Joe
  • Publication number: 20240328485
    Abstract: A torsion spring for an oil pump chain tensioner for use in an engine. The torsion spring has: a second end; a leg connected to the second end through a hook bend; an outer coil connected to the leg having an outer coil outer circumference and an outer coil inner circumference; a first inner coil connected to the outer coil, the first inner coil having a first inner coil outer circumference and a first inner coil inner circumference, the outer coil inner circumference being adjacent to the first inner coil outer circumference; and a second inner c-shaped coil connected to the first inner coil through a bend back loop, the second inner coil having a second inner coil outer circumference and a second inner coil inner coil circumference and terminating in a first end, where the second inner coil outer circumference and the first coil inner circumference define a gap.
    Type: Application
    Filed: November 30, 2021
    Publication date: October 3, 2024
    Inventor: KyungChul JOE