Patents by Inventor Hou Chong Lei

Hou Chong Lei 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: 6039561
    Abstract: A safety piezo-electric lighter having a one-piece safety device that is on the thumb-piece which will prevent accidental ignition and will also prevent ignition by children. The safety device on the thumb-piece does not interfere with the conventional operation of the lighter and does not require the user to manipulate a switch with a separate finger than the one used to press the thumb-piece. The one-piece safety device is very easy and inexpensive to manufacture and assemble.
    Type: Grant
    Filed: February 23, 1998
    Date of Patent: March 21, 2000
    Inventor: Hou Chong Lei
  • Patent number: 5997281
    Abstract: A safety lighter having a safety thumb-wheel design that will prevent accidental ignition and unauthorized use by children. The safety lighter can be ignited with one easy press of the thumb-wheel without any additional manipulation of slides or switches. The safety thumb-wheel design consists of a friction thumb-wheel assembled between two side thumb-wheels on an axle. The two side thumb-wheels has a circular shallow indentation on the face that contacts the friction thumb-wheel. The inside diameter of the circular shallow indentation is slightly larger than the outside diameter of the friction thumb-wheel such that the friction thumb-wheel can be inserted in the circular shallow indentation. When pressing down with moderate force on the two side thumb-wheels, they will engage the friction thumb-wheel, which in turn bears against a flint to create a spark.
    Type: Grant
    Filed: February 20, 1998
    Date of Patent: December 7, 1999
    Inventor: Hou Chong Lei
  • Patent number: D459542
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: June 25, 2002
    Inventor: Hou Chong Lei
  • Patent number: D459543
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: June 25, 2002
    Inventor: Hou Chong Lei