Patents by Inventor Mou-Tang Liou

Mou-Tang Liou 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: 6532847
    Abstract: A pair of pliers includes a first plier body including a first handle attached to a first end thereof and a second end. The first plier body further includes a mediate portion with a first pivotal section and a second pivotal section. A second plier body includes a first end with a slot and a second end that cooperates with the second end of the first plier body for exerting a force on an object between the second end of the first plier body and the second end of the second plier body. The second plier body further includes a mediate portion with a third pivotal section in pivotal engagement with the first pivotal section of the first plier body. The mediate portion of the first plier body and the mediate portion of the second plier body together define a compartment. A third plier body includes a second handle attached to a first end thereof and a second end with a rocker movably received in the compartment. The rocker is in pivotal connection with the second pivotal section of the first plier body.
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: March 18, 2003
    Inventor: Mou-Tang Liou
  • Publication number: 20030041384
    Abstract: A tool includes a tool bit, a handle and a locking device. T tool bit includes a working head formed at an end, an insert formed at an opposite end and at least one annular groove defined in the insert. The handle includes a grip formed at an end, a socket defining a cavity for receiving the insert of the tool bit and a joint via which the socket is connected with an opposite end of the handle. The locking device can lock the insert of the tool bit in a releasable manner. The locking device includes a tunnel defined in the joint so that an axis of the tunnel is parallel to that of the cavity. A latch defines at least one notch. The latch is movable in the tunnel between a locking position and a releasing position. The locking device includes at least one truncated conical hole through which the cavity is communicated with the tunnel. The at least one truncated conical hole includes a first end at the cavity and a second end at the tunnel.
    Type: Application
    Filed: October 4, 2002
    Publication date: March 6, 2003
    Inventor: Mou-Tang Liou
  • Publication number: 20030041459
    Abstract: A tool holder and tool combination comprises a tool holder and a tool. The tool holder comprises a compartment defined in an end thereof. The tool has an end releasably engaged in the compartment of the tool holder.
    Type: Application
    Filed: August 29, 2001
    Publication date: March 6, 2003
    Inventor: Mou-Tang Liou
  • Publication number: 20030025345
    Abstract: A tool includes a tool bit and a handle. The tool bit includes a shank formed at an end thereof. The handle includes a joint formed at an end thereof for connection with the shank of the tool bit in a releasable manner. The joint defmes a space for receiving the shank of the tool bit. The shank of the tool bit defines at least one recess. The joint includes at least one ball that can partially enters the at least one recess defined in the shank of the tool bit.
    Type: Application
    Filed: April 8, 2002
    Publication date: February 6, 2003
    Inventor: Mou-Tang Liou
  • Publication number: 20010007214
    Abstract: A pair of pliers includes a first plier body including a first handle attached to a first end thereof and a second end. The first plier body further includes a mediate portion with a first pivotal section and a second pivotal section. A second plier body includes a first end with a slot and a second end that cooperates with the second end of the first plier body for exerting a force on an object between the second end of the first plier body and the second end of the second plier body. The second plier body further includes a mediate portion with a third pivotal section in pivotal engagement with the first pivotal section of the first plier body. The mediate portion of the first plier body and the mediate portion of the second plier body together define a compartment. A third plier body includes a second handle attached to a first end thereof and a second end with a rocker movably received in the compartment. The rocker is in pivotal connection with the second pivotal section of the first plier body.
    Type: Application
    Filed: February 15, 2001
    Publication date: July 12, 2001
    Inventor: Mou-Tang Liou
  • Patent number: 6019020
    Abstract: A pipe wrench includes a first elongated member and a second elongated member. A first intermediate section of the first elongated member includes a recess defined in an inner side thereof that faces a second intermediate section of the second elongated member. A bottom wall that defines the recess has a ridge formed thereon. A first stepped portion and a second stepped portion are formed on two sides of the recess, respectively. A first pin and a second pin are respectively formed on the first stepped portion and the second stepped portion. The second intermediate section includes a number of parallel channels defined in an inner side thereof that faces the first intermediate section. The ridge is releasably engaged with one of the channels. A panel is mounted to an outer side of second intermediate section and includes two holes through which the first pin and the second pin are extended and riveted, respectively.
    Type: Grant
    Filed: September 14, 1998
    Date of Patent: February 1, 2000
    Inventor: Mou-Tang Liou
  • Patent number: 5894617
    Abstract: A multipurpose tool includes a first member and a second member crosswise pivotally connected together, and a third member pivotally connected to the second member. Each of the first member and the second member has a plurality of recesses defined in one of two sides thereof and the recesses of the two members face with each other. The other side of the second member has a plurality of first stripping recesses defined therein. The third member has a plurality of second stripping recesses defined in a side facing to the first stripping recesses of the second member. Each of the first member and the third member has a stud extending laterally therefrom, and a locking member is pivotally disposed to the second member so that the locking member is selectably engaged with the two studs to combine the second member with the first member or the third member.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: April 20, 1999
    Inventor: Mou-Tang Liou
  • Patent number: 5752419
    Abstract: A pair of pliers includes a first plier member and a second plier member each including a jaw, an intermediate portion, and a handle portion. The intermediate portion of the second plier member includes an elongate slot having a narrowed section in a mediate portion thereof. The intermediate portion of the first plier member includes an integral stub formed on one side thereof which faces the intermediate portion of the second plier member. A pivot extends upwardly from the stub and extends through the elongate slot. A block is integrally formed on the side of the intermediate portion of the first plier member adjacent to the jaw of the first plier member, an engaging pin extending upwardly from the block. A cover plate is mounted to the first and the second piler members and includes two holes through which the engaging pin and the pivot extend, respectively. The engaging pin and the pivot are riveted to securely hold the first and the second plier members together.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: May 19, 1998
    Inventor: Mou-Tang Liou
  • Patent number: 5280738
    Abstract: A hammer includes a handle having a head pivotally connected to one end of the handle. A positioning device is provided to position the head at an angle with respect to the handle.
    Type: Grant
    Filed: July 12, 1993
    Date of Patent: January 25, 1994
    Inventor: Mou-Tang Liou
  • Patent number: 5255578
    Abstract: A wrench includes a positioning device for engagement with an object to be driven in order to retain the object in place relative to the head portion of the wrench. The positioning device includes a protrusion formed on the head portion, a depression formed in the protrusion, a spring and a stub received in the depression. The stub is biased outward of the protrusion for engagement with the object.
    Type: Grant
    Filed: October 29, 1992
    Date of Patent: October 26, 1993
    Inventor: Mou-Tang Liou
  • Patent number: 4796492
    Abstract: A socket wrench comprises a handled hollow head receiving a torque transmitting sleeve member which is provided with peripheral teeth to engage with inwardly extending teeth of the hollow head. The teeth of both the hollow head and the sleeve member are elongated axially and formed in such a manner that their height from their intermediate portion gradually reduces towards the two ends thereof and their intermediate portion is notched to receive a C-shaped locking ring that interengages the hollow head and the sleeve member. The teeth can engage with each other when the handle is turned upward or downward to cause the axis of the hollow head to incline the axis of the sleeve, and to disengage from each other when the axis of the hollow head is in alignment with that of the sleeve.
    Type: Grant
    Filed: May 20, 1988
    Date of Patent: January 10, 1989
    Inventor: Mou-Tang Liou
  • Patent number: D369534
    Type: Grant
    Filed: September 14, 1994
    Date of Patent: May 7, 1996
    Inventor: Mou-Tang Liou
  • Patent number: D384264
    Type: Grant
    Filed: May 24, 1996
    Date of Patent: September 30, 1997
    Inventor: Mou-Tang Liou