Patents by Inventor Hien Kieu

Hien Kieu 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: 7117920
    Abstract: A cord lock for use in a window covering for selectively locking lift cords in a predetermined position includes a housing adapted to be fitted in the head rail of the window covering with the housing having a pivotal locking lever with a cord gripping formation at one end adjacent a locking surface on the housing and a cord guiding passage at the opposite end through which the lift cords can pass. The locking lever is pivoted about a pivot pin that is located between the cord gripping formation and the cord guiding passage so that the cord gripping formation can move toward and away from engagement with the locking surface with pivoting movement of the locking lever about the pivot pin. A fixed guiding surface is also provided around which the lift cords pass for dependable operation of the cord lock.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: October 10, 2006
    Assignee: Hunter Douglas Industries BV
    Inventors: Nicolaas Dekker, Hien Kieu
  • Publication number: 20050056384
    Abstract: A cord lock for use in a window covering for selectively locking lift cords in a predetermined position includes a housing adapted to be fitted in the head rail of the window covering with the housing having a pivotal locking lever with a cord gripping formation at one end adjacent a locking surface on the housing and a cord guiding passage at the opposite end through which the lift cords can pass. The locking lever is pivoted about a pivot pin that is located between the cord gripping formation and the cord guiding passage so that the cord gripping formation can move toward and away from engagement with the locking surface with pivoting movement of the locking lever about the pivot pin. A fixed guiding surface is also provided around which the lift cords pass for dependable operation of the cord lock.
    Type: Application
    Filed: September 2, 2004
    Publication date: March 17, 2005
    Applicant: Hunter Douglas Industries BV
    Inventors: Nicolaas Dekker, Hien Kieu