Patents by Inventor David B Purdie

David B Purdie 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).

  • Seat belt tension sensor
    Patent number: 6554318
    Abstract: A seat belt tension sensing assembly fixedly secured to a vehicle. The seat belt tension sensing assembly has a housing and a slider slidably received within the housing, the slider being capable of movement between a first position and a second position within the housing, the second position corresponding to a tension in the seat belt consummate with a child safety seat being secured by the seat belt, the slider having a first opening for a portion of the seat belt to pass therethrough. A first magnet and a second magnet are secured in a second opening in the slider, the first and second magnet being in a facing spaced relationship. A Hall effect device is fixedly secured to the housing and protrudes into the second opening of the slider. The Hall effect device is closer to the first magnet when the slider is in the first position and the Hall effect device is closer to the second magnet when the slider is in the second position.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: April 29, 2003
    Assignee: Delphi Technologies, Inc.
    Inventors: George Rodney Kohut, Joseph Y Yoon, Morgan D. Murphy, David L Hartley, David B Purdie
  • Seat belt tension sensor
    Publication number: 20010042981
    Abstract: A seat belt tension sensing assembly fixedly secured to a vehicle. The seat belt tension sensing assembly has a housing and a slider slidably received within the housing, the slider being capable of movement between a first position and a second position within the housing, the second position corresponding to a tension in the seat belt consummate with a child safety seat being secured by the seat belt, the slider having a first opening for a portion of the seat belt to pass therethrough. A first magnet and a second magnet are secured in a second opening in the slider, the first and second magnet being in a facing spaced relationship. A Hall effect device is fixedly secured to the housing and protrudes into the second opening of the slider. The Hall effect device is closer to the first magnet when the slider is in the first position and the Hall effect device is closer to the second magnet when the slider is in the second position.
    Type: Application
    Filed: February 28, 2001
    Publication date: November 22, 2001
    Inventors: George Rodney Kohut, Joseph Y. Yoon, Morgan D. Murphy, David L. Hartley, David B. Purdie