Patents by Inventor Jeng Dar Lin

Jeng Dar Lin 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).

  • Publication number: 20030034215
    Abstract: The present invention provides an extension structure of a swivel wheel, which comprises a base seat and an extension rod. The base seat has a guide groove defined by a bottom face and two sidewalls. The front end of the bottom face has a projective stop block. The two sidewalls have lock grooves at the front and rear ends thereof. The extension rod has a guide rod matched and sleeved into the guide groove. The bottom of the guide rod has a groove to let the stop block abut thereon timely. Two sides at the rear end of the guide rod have tenons capable of being locked in the lock grooves timely. The swivel wheel at the front end of the extension rod can extend out a predetermined distance to obtain an extended supporting point, thereby preventing a traveling suitcase from falling down because of an unstable center of gravity.
    Type: Application
    Filed: August 16, 2001
    Publication date: February 20, 2003
    Inventor: Jeng Dar Lin