Patents by Inventor Li-Tu Lin Wu

Li-Tu Lin 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: 20140069239
    Abstract: A curved-type adjustable wrench has a handle and an operating head. The handle is curved and has a hanging hole with a center point. The operating head is formed on and protrudes from the handle opposite to the hanging hole and has a fixed jaw, a movable jaw and a thumbscrew. The fixed jaw has a vertical plane, a sliding slot, an opening hole and an operating face. The movable jaw is movably connected to the fixed jaw, faces the operating face and has an engaging rod. The thumbscrew is rotatably mounted in the opening hole of the fixed jaw and extends into the sliding slot to engage the engaging rod. An angle between the operating face of the fixed jaw and the handle is 25˜40°.
    Type: Application
    Filed: September 12, 2012
    Publication date: March 13, 2014
    Inventor: LI-TU LIN WU
  • Publication number: 20140053694
    Abstract: A pair of rib joint pliers has a first body, a second body and a pivot-adjusting element. The first body has a handle, a jaw and an elongated through slot formed through the first body to form two connecting panels with a mounting recess, a pivot hole and a through hole. The second body is rotatably connected to the first body and has a handle, a jaw and an adjusting groove. The adjusting groove is formed through the second body and communicates with the elongated through slot. The pivot-adjusting element is movably connected to the first body, selectively engages with the second body and has an engaging mount movably mounted between the adjusting groove, the pivot hole and the mounting recess, a pressing button securely connected to the engaging mount and a returning spring mounted in the mounting recess, mounted around the engaging mount and abutting the pressing button.
    Type: Application
    Filed: August 24, 2012
    Publication date: February 27, 2014
    Inventor: Li-Tu Lin Wu
  • Publication number: 20050233118
    Abstract: A tool coating with colored patterns is attached to a tool, has a tool coating foundation having a surface and at least one colored pattern layer. The at least one colored pattern layer may form exquisite and colorful characters and figures and may be attached to any surface of the tool coating foundation instead of only flat surfaces of the tool coating body. Therefore the appearance of the tool is more attractive and a user can see the characters and figures of the tool coating and identify the tool easily.
    Type: Application
    Filed: April 16, 2004
    Publication date: October 20, 2005
    Inventor: Li-Tu Lin Wu
  • Patent number: 6874630
    Abstract: A suspension plate has a base plate, a U-shaped holding member and a locking stub. The base plate has a suspension hole defined near one end of the base plate. The holding member is formed on the base plate to define a chamber with two opening ends between the holding member and the base plate. A locking channel is defined in the base plate and has multiple first teeth formed on each respective side of the channel. The locking stub is inserted into the locking channel and has multiple second teeth formed on the protrusion to engage with the teeth on the locking channel so as to keep the protrusion from moving in reverse. Accordingly, a tool can be securely held in the suspension plate to keep the tool from being unauthorizedly removed.
    Type: Grant
    Filed: March 6, 2003
    Date of Patent: April 5, 2005
    Inventor: Li-Tu Lin Wu
  • Patent number: 6862959
    Abstract: A pair of pliers has a handle (11), a head (13), a rivet (15), at least one colored layer (17) and optionally, plastic sleeves on the handle (11). The at least one colored layer (17) is at least one color especially designed with unique features to make identification of the pliers easy and make the pliers have an attractive appearance.
    Type: Grant
    Filed: April 15, 2003
    Date of Patent: March 8, 2005
    Inventor: Li-Tu Lin Wu
  • Publication number: 20040206216
    Abstract: A pair of pliers has a handle (11), a head (13), a rivet (15), at least one colored layer (17) and optionally, plastic sleeves on the handle (11). The at least one colored layer (17) is at least one color especially designed with unique features to make identification of the pliers easy and make the pliers have an attractive appearance.
    Type: Application
    Filed: April 15, 2003
    Publication date: October 21, 2004
    Inventor: Li-Tu Lin Wu
  • Publication number: 20040173486
    Abstract: A suspension plate has a base plate, a U-shaped holding member and a locking stub. The base plate has a suspension hole defined near one end of the base plate. The holding member is formed on the base plate to define a chamber with two opening ends between the holding member and the base plate. A locking channel is defined in the base plate and has multiple first teeth formed on each respective side of the channel. The locking stub is inserted into the locking channel and has multiple second teeth formed on the protrusion to engage with the teeth on the locking channel so as to keep the protrusion from moving in reverse. Accordingly, a tool can be securely held in the suspension plate to keep the tool from being unauthorizedly removed.
    Type: Application
    Filed: March 6, 2003
    Publication date: September 9, 2004
    Inventor: Li-Tu Lin Wu
  • Publication number: 20030154829
    Abstract: A hand tool with a composite handle includes a first body made of a steel alloy having a skeletal extension protruding from one end, and a second body coated on the outer periphery of the skeletal extension. The second body is made of composite material such as carbon fiber, fiberglass or the like. The composite material lighter than the steel alloy so that the hand tool is convenient to use. The composite material is a good insulator that can effectively prevent the user from getting an electric shock.
    Type: Application
    Filed: January 8, 2001
    Publication date: August 21, 2003
    Inventor: Li-Tu Lin Wu
  • Patent number: 6467376
    Abstract: A hammer includes a composite material handle having a connecting portion formed on one end of the composite material handle. A head is encircled in the connecting portion of the handle and has a flat working face formed on one end. An annular groove is defined in a middle portion of the head to receive the connection portion of the handle. A through hole is transversely defined in the middle portion of the head and communicates with the annular groove. A cushion core is securely inserted in the through hole in the head to absorb the shock generated when the hammer is used.
    Type: Grant
    Filed: July 9, 2001
    Date of Patent: October 22, 2002
    Inventor: Li-Tu Lin Wu
  • Patent number: D494037
    Type: Grant
    Filed: July 23, 2003
    Date of Patent: August 10, 2004
    Inventor: Li-Tu Lin Wu
  • Patent number: D494442
    Type: Grant
    Filed: September 3, 2003
    Date of Patent: August 17, 2004
    Inventor: Li-Tu Lin Wu