Patents by Inventor Changde Tang

Changde Tang 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).

  • Automatic bottom lock
    Patent number: 7883304
    Abstract: The present invention provides an automatic bottom lock comprises a lock base, and a lock body fastened above the lock base comprising a hook provided thereon having a transverse guiding slope extending forward and downwardly from a top at a front side of the hook, a hooking slope extending backward and downwardly from a lower end of the transverse guiding slope, a transverse sliding slope extending backward and downwardly from a top at a rear side of the hook, and a locating plane at the bottom of the lock body extending backward and downwardly from the transverse sliding slope, wherein the locating plane is vertical to the horizontal plane, and extends left and right along the lock body.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: February 8, 2011
    Assignee: Kunshan Lucky Sea Instudrial Co., Ltd.
    Inventor: Changde Tang
  • Automatic Bottom Lock
    Publication number: 20090110506
    Abstract: The present invention provides an automatic bottom lock comprises a lock base, and a lock body fastened above the lock base comprising a hook provided thereon having a transverse guiding slope extending forward and downwardly from a top at a front side of the hook, a hooking slope extending backward and downwardly from a lower end of the transverse guiding slope, a transverse sliding slope extending backward and downwardly from a top at a rear side of the hook, and a locating plane at the bottom of the lock body extending backward and downwardly from the transverse sliding slope, wherein the locating plane is vertical to the horizontal plane, and extends left and right along the lock body.
    Type: Application
    Filed: February 12, 2008
    Publication date: April 30, 2009
    Inventor: Changde Tang