Patents by Inventor Zhi-Jia Chen

Zhi-Jia Chen 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: 8128141
    Abstract: A safety hook includes a hook body comprising a recess at back of an intermediate portion, a locking dog at one end, a ring at the other end, and a front opening; a spring depressible latch member having a U section and comprising a plate interconnecting two side walls, the latch member being pivotably disposed on the back of the intermediate portion of the hook body with the plate being seated upon a flat portion of the recess; and a spring depressible lock member having a U section and comprising two side walls and a through hole on a groove portion. The lock member is pivotably disposed on a front side of the hook body with the side walls thereof partially straddled the hook body to be seated upon a portion of the plate. The locking dog is inserted into the through hole when the safety hook is locked.
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: March 6, 2012
    Assignee: Yoke Industrial Corp.
    Inventor: Zhi-Jia Chen
  • Publication number: 20110113602
    Abstract: A safety hook includes a hook body comprising a recess at back of an intermediate portion, a locking dog at one end, a ring at the other end, and a front opening; a spring depressible latch member having a U section and comprising a plate interconnecting two side walls, the latch member being pivotably disposed on the back of the intermediate portion of the hook body with the plate being seated upon a flat portion of the recess; and a spring depressible lock member having a U section and comprising two side walls and a through hole on a groove portion. The lock member is pivotably disposed on a front side of the hook body with the side walls thereof partially straddled the hook body to be seated upon a portion of the plate. The locking dog is inserted into the through hole when the safety hook is locked.
    Type: Application
    Filed: November 16, 2009
    Publication date: May 19, 2011
    Inventor: Zhi-Jia Chen