Patents by Inventor Hua-Chun Chang

Hua-Chun Chang 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: 20090047821
    Abstract: An electrical connector comprises a locking device, comprising a long sheet body, a pair of locking portions, a tail portion, a fixing portion and an operating portion. The locking portions stretch respectively from both sides of the long sheet body and have locking hooks at each end. The tail portion and the fixing portion stretch out from the middle of the rear edge of the long sheet body, and the operating portion stretches out from the middle of the front edge. The fixing portion is in a U-shape to buckle the locking device to the electrical connector. The tail portion and the fixing portion can keep the locking device in locking state, and by pressing the operating portion to keep the locking device in releasing state.
    Type: Application
    Filed: February 7, 2008
    Publication date: February 19, 2009
    Inventors: Li-Sen Chen, Hua-Chun Chang
  • Publication number: 20090035982
    Abstract: A locking device of an electrical connector, wherein the electrical connector comprises an insulating housing, a terminal set and a shielding shell. The insulating housing has at least a sidewall thereby confining at least a containing space between the shielding shell and the sidewall. The locking device can be pivotally connected in the containing space by a pivot and be able to swivel with the pivot. The locking device comprises a main body, a locking portion, a spring arm and an operating portion. The main body has a pivot passing through the central part. The locking portion and the operating portion are respectively at the both ends of the main body. The spring arm, bent from the main body, exerts a pre-loading force toward the sidewall of the insulating housing to keep the locking portion of the locking device in a stationary position.
    Type: Application
    Filed: February 7, 2008
    Publication date: February 5, 2009
    Inventors: Li-Sen Chen, Hua-Chun Chang