Patents by Inventor Pi-Liang Wu

Pi-Liang Wu 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: 20060053608
    Abstract: A pipe disassembling tool includes a U-shaped body having a first arm and a second arm that can be outwardly wrenched relative to each other. The first arm and the second arm respectively have a curved cutout defined in a free end thereof and facing each other. A first curved pusher and a second covered pusher respectively extends from the free end of the first arm and the second arm. Each curved pusher corresponds to a corresponding one of the two curved cutouts. The first curved pusher and the second curved pusher are provided to outwardly the pawls of a coupling to allow the operator longitudinally detaching the pipe.
    Type: Application
    Filed: August 4, 2005
    Publication date: March 16, 2006
    Inventor: Pi-Liang Wu
  • Publication number: 20060021480
    Abstract: A detachment tool for a pipe clamping strap detachment tool includes a support seat, a fixed jaw, a movable member including a base plate and a movable jaw, and a threaded rod. Thus, the two ear plates of the pipe clamping strap are supported by the fixed jaw and the movable jaw of the movable member rigidly and stably without slip during the detachment process of the pipe clamping strap, thereby facilitating a user detaching the pipe from the pipe clamping strap.
    Type: Application
    Filed: July 30, 2004
    Publication date: February 2, 2006
    Inventor: Pi-Liang Wu
  • Publication number: 20060016058
    Abstract: A holding device for a timing belt wheel module includes a link, a first holding member secured on a distal end of the link, and a second holding member movably mounted on the link. Each of the first holding member and the second holding member includes a fixed snap plate, a movable snap plate, and a locking bolt. Thus, the holding device is used to hold timing belt wheel modules of different sizes, types and specifications without having to prepare multiple sets of holders of different sizes, types and specifications, thereby facilitating maintenance of the timing belt wheel module.
    Type: Application
    Filed: July 22, 2004
    Publication date: January 26, 2006
    Inventor: Pi-Liang Wu
  • Publication number: 20050061851
    Abstract: An auxiliary soldering tool includes a first jaw plate having a first holding portion and a first holding portion, a second jaw plate having a second holding portion and a second holding portion, and two elastic press plates each respectively rested on the first holding portion of the first jaw plate and the second holding portion of the second jaw plate. Thus, the auxiliary soldering tool facilitates the soldering work of two wires, so that the worker can solder and connect the two wires easily and conveniently.
    Type: Application
    Filed: September 24, 2003
    Publication date: March 24, 2005
    Inventor: Pi-Liang Wu
  • Publication number: 20040182207
    Abstract: A detachment device of the engine oil filter of an automobile includes a base, two toggle plates, two clamping plates, and two link mechanisms. The clamping plates are connected by the link mechanisms which cannot be returned automatically, so that the user needs not to exert a large force to pull and push the two clamping plates, thereby facilitating the user's operation. In addition, each connecting portion has a width different from the diameter of the base, thereby forming a gap between the base and each connecting portion, so that the user can clearly watch the present position of the engine oil filter, thereby facilitating the user mounting and detaching the engine oil filter.
    Type: Application
    Filed: March 20, 2003
    Publication date: September 23, 2004
    Inventor: Pi-Liang Wu
  • Patent number: 6698075
    Abstract: A holding device of a timing belt wheel structure includes two links, and two holding members. Thus, the relative position between the two holding members and the relative angle between the snap plates of the two holding members can be adjusted arbitrarily so as to fit the relative position of the two timing belt wheels, so that the holding device can be used to hold and position timing belt wheel structures of different sizes, types and specifications without having to prepare multiple holders of different sizes, types and specifications, thereby enhancing convenience in operation and maintenance of the timing belt wheel structure.
    Type: Grant
    Filed: April 1, 2003
    Date of Patent: March 2, 2004
    Inventor: Pi-Liang Wu
  • Publication number: 20030079325
    Abstract: The present invention relates to a holding device of a belt wheel structure, including two arm plates, and a connecting member. Each arm plate is pivoted with the connecting member by a locking member. Each arm plate has a first end provided with a fixing snap, and a second end pivoted with a movable snap by a securing member. Each movable snap has a base portion screwed with the securing member, thereby positioning and locking the movable snap on the respective arm plate. The fixing snap is protruded with a snap tooth, and each movable snap is laterally protruded with a snap tooth, so that the snap tooth of the fixing snap may mate with the snap tooth of each movable snap to be inserted into a belt wheel structure for holding and securing the belt wheel structure.
    Type: Application
    Filed: October 29, 2001
    Publication date: May 1, 2003
    Inventor: Pi-Liang Wu
  • Patent number: 6443515
    Abstract: A holding wrench includes a body having a first arm plate having a first end and a second end, and a second arm plate having a first end pivoted on the mediate portion of the first arm plate. A first holding assembly includes two first holding members each having a first end secured on the second end of the first arm plate and the second arm plate respectively, and a second end defining a snap recess. A second holding assembly includes two second holding members each having a threaded post selectively screwed into the first arm plate and the second arm plate respectively, thereby selectively securing the two second holding members to the first arm plate and the second arm plate respectively. The threaded post has a first end provided with an enlarged head, and a second end formed with an insertion stub.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: September 3, 2002
    Inventor: Pi-Liang Wu
  • Patent number: 6434830
    Abstract: The present invention relates to a pair of fastening strap scissors including two blades pivoted with each other and each having a first end formed with a cutting section and a second secured with a respective handle. The cutting section of each of the two blades is formed with an oblique blade edge and has a distal end formed with a bent hook. The bent hook has a distal end formed with a hook tip located outside of the blade edge. An oblique guide face is formed on the bent hook and located between the blade edge of the cutting section and the hook tip of the bent hook of the cutting section. An insertion angle is formed on the connection of the guide face and the blade edge so as to clip a fastening strap, thereby facilitating the work of cutting the fastening strap.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: August 20, 2002
    Inventor: Pi-Liang Wu
  • Patent number: 6370985
    Abstract: An extractor tool for coupling fastened to pipes comprises an actuation device, a holding device, and a cable having one end secured to the holding device and the other end slidably secured to the actuation device. In use, engage the holding device with the coupling and pivot the first actuation device to enlarge the diameter of the coupling, thereby detaching the coupling from the pipes through the cable.
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: April 16, 2002
    Inventor: Pi-Liang Wu
  • Patent number: 6276236
    Abstract: The present invention is regarding to a structural improvement of a clamp which includes a flex attached to a handle set, an actuator cable extends through the slider and is linked to gripper device, of which the openings and open notch are built in, it offers a convenient scheme for operator to detach or engage actuator cable from gripper device, by simple operation, gripper devices may be conveniently interchanged in order to meet versatile needs in various situations.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: August 21, 2001
    Inventor: Pi-Liang Wu