Patents by Inventor Chao-Chi Wang

Chao-Chi Wang 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: 6857342
    Abstract: A pair of locking pliers includes a first jaw, a first handle, a second jaw, a second handle, a toggle, an adjusting screw, a release lever, a spring, and a soft jacket. The first handle extends from the first jaw and includes a space defined therein. The second jaw is pivotally connected with the first jaw. The second handle is pivotally connected with the second jaw. The toggle includes a first end pivotally connected with the second handle and a second end inserted into the space of the first handle. The adjusting screw includes an end driven into the space of the first handle for abutment against the second end of the toggle. The release lever is pivotally connected with the second handle. The release lever includes a first end for abutment against the toggle and a second end to be pressed by a user. The spring includes an end secured to the first handle and an opposite end secured to the second jaw. The soft jacket wraps up the second handle and the release lever.
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: February 22, 2005
    Inventor: Chao-Chi Wang
  • Publication number: 20040103766
    Abstract: A pair of locking pliers includes a first jaw, a first handle, a second jaw, a second handle, a toggle, an adjusting screw, a release lever, a spring, and a soft jacket. The first handle extends from the first jaw and includes a space defined therein. The second jaw is pivotally connected with the first jaw. The second handle is pivotally connected with the second jaw. The toggle includes a first end pivotally connected with the second handle and a second end inserted into the space of the first handle. The adjusting screw includes an end driven into the space of the first handle for abutment against the second end of the toggle. The release lever is pivotally connected with the second handle. The release lever includes a first end for abutment against the toggle and a second end to be pressed by a user. The spring includes an end secured to the first handle and an opposite end secured to the second jaw. The soft jacket wraps up the second handle and the release lever.
    Type: Application
    Filed: May 22, 2003
    Publication date: June 3, 2004
    Inventor: Chao-Chi Wang
  • Publication number: 20040009689
    Abstract: A dustproof electrical wall socket has at least one contact housing, an attachment plate, a decorative plate and a dust cover corresponding to each contact housing. The attachment plate is mounted on the wall and the at least one contact housing is connected to the attachment plate. The decorative plate is detachably connected to the attachment plate, and the dust cover is moveably mounted between the attachment plate and the decorative plate. The attachment plate also has three prong slots corresponding to each contact housing. The present invention can be conveniently assembled and installed and improves safety.
    Type: Application
    Filed: July 10, 2002
    Publication date: January 15, 2004
    Inventor: Chao-Chi Wang
  • Patent number: 6012362
    Abstract: A utility pliers includes a first handle member with a fixed jaw secured to an end thereof, a second handle member, and a movable jaw. A connecting block includes a first part pivoted to the end of the first handle member and a second part pivoted to the second handle member. The connecting block further includes a slot defined therein. Two follower blocks are mounted to both sides of the connecting block. A pin is extended through the follower blocks and the slot of the connecting block to guide sliding movements of the follower blocks along the slot relative to the connecting block. The movable jaw is connected to the follower blocks to move therewith.
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: January 11, 2000
    Inventor: Chao-Chi Wang
  • Patent number: 5964130
    Abstract: Jaw members for a pair of pliers includes a first jaw member connected to the first handle and a second jaw member connected to a second handle which is pivotally connected to the first handle. An inner side of the first jaw member includes a first and a second function surface, wherein the second function surface extends inclinedly corresponding to a longitudinal axis of the first handle and toward the second jaw member. A function member is pivotally mounted to an inner side of the second jaw member with a spring biasedly connected therebetween.
    Type: Grant
    Filed: May 18, 1998
    Date of Patent: October 12, 1999
    Inventor: Chao-Chi Wang