Patents by Inventor Darin L. Gwin

Darin L. Gwin 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).

  • Bimetal coil assembly for fan drive
    Patent number: 9856924
    Abstract: A system and method of anchoring a bimetal coil member on a viscous clutch fan drive. An adjustable channeled retainer member together with a silicone or silicone-type material is used to anchor the free end of the bimetal coil member.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: January 2, 2018
    Assignee: BorgWarner Inc.
    Inventors: Ryan W. Livingston, Jason R. Roderick, Darin L. Gwin
  • BIMETAL COIL ASSEMBLY FOR FAN DRIVE
    Publication number: 20160238088
    Abstract: A system and method of anchoring a bimetal coil member on a viscous clutch fan drive. An adjustable channeled retainer member together with a silicone or silicone-type material is used to anchor the free end of the bimetal coil member.
    Type: Application
    Filed: February 18, 2015
    Publication date: August 18, 2016
    Inventors: Ryan W. Livingston, Jason R. Roderick, Darin L. Gwin
  • Electronically controlled viscous fan drive
    Patent number: 6752251
    Abstract: An electronically-controlled viscous fan drive having a one-piece accumulator and reservoir located on the top side of the clutch. The accumulator also has a low pressure and high pressure fill hole for allowing movement of viscous fluid from the reservoir to a anti-bleedback chamber and into the operating and working chamber of the coupling during normal operation. A radially balance valve disk having a step up feature coupled to a spring and an actuator electronically controls movement of viscous fluid from the reservoir to the anti-bleedback chamber through the fill holes by energizing or deenergizing the spring based on engine operating conditions. The valve disk may be a one-piece or two-piece design. The accumulator is designed to prevent morning sickness associated with the flow of viscous fluid from the reservoir to the operating chamber during engine off situations.
    Type: Grant
    Filed: November 4, 2002
    Date of Patent: June 22, 2004
    Assignee: BorgWarner, Inc.
    Inventors: James P. May, Neil E. Robb, Darin L. Gwin
  • Electronically controlled viscous fan drive
    Publication number: 20040084273
    Abstract: An electronically-controlled viscous fan drive having a one-piece accumulator and reservoir located on the top side of the clutch. The accumulator also has a low pressure and high pressure fill hole for allowing movement of viscous fluid from the reservoir to a anti-bleedback chamber and into the operating and working chamber of the coupling during normal operation. A radially balance valve disk having a step up feature coupled to a spring and an actuator electronically controls movement of viscous fluid from the reservoir to the anti-bleedback chamber through the fill holes by energizing or deenergizing the spring based on engine operating conditions. The valve disk may be a one-piece or two-piece design. The accumulator is designed to prevent morning sickness associated with the flow of viscous fluid from the reservoir to the operating chamber during engine off situations.
    Type: Application
    Filed: November 4, 2002
    Publication date: May 6, 2004
    Inventors: James P. May, Neil E. Robb, Darin L. Gwin