Patents by Inventor Chieh-Yuan Tsai

Chieh-Yuan Tsai 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: 20100132527
    Abstract: A saw blade adjustment structure for table comprises a support rod inserted through a respective arched sliding slot on a front support panel and a rear support panel, a handle pivoted to the front end of the support rod and biasable between a holding down position and a release position, and an adjustment member set between the front support panel and the handle and having an oblong hole coupled to the support rod such that the adjustment member is movable between an initial position and a push-out position subject to movement of the handle between the holding down position and the release position.
    Type: Application
    Filed: January 22, 2009
    Publication date: June 3, 2010
    Applicant: DURQ MACHINERY CORP.
    Inventors: Chia-Sheng Liu, Chieh-Yuan Tsai
  • Publication number: 20100126324
    Abstract: A quickly detachable spreader mounting structure used in a table saw is disclosed to include a spreader holder, a spreader detachably clamped in the spreader holder, a positioning member inserted through the spreader holder and the spreader and having a positioning portion, and a handle coupled to the positioning member and having a protruding portion and biasable between an unlocking position where the protruding portion is moved away from the positioning portion to release the spreader from the spreader holder and a locking position where the protruding portion is abutted against the positioning portion to lock the spreader to the spreader holder.
    Type: Application
    Filed: January 12, 2009
    Publication date: May 27, 2010
    Applicant: DURQ MACHINERY CORP.
    Inventors: Chia-Sheng Liu, Chieh-Yuan Tsai
  • Publication number: 20100102536
    Abstract: A movable carrier for combination with a table saw includes a retractable bar and two rollers. When the retractable bar is extracted and the rollers touch the ground, the table saw can be easily carried to move from one place to another. When the retractable bar is retracted, the movable carrier is spaceless and can prevent the table saw from collision.
    Type: Application
    Filed: December 29, 2008
    Publication date: April 29, 2010
    Applicant: DURQ MACHINERY CORP.
    Inventors: Chia-Sheng Liu, Chieh-Yuan Tsai
  • Patent number: 7552666
    Abstract: A sawing machine includes a base, a saw arm assembly pivotally connected to the base and having a L-shaped groove defined therein, a saw blade pivotally mounted to the saw arm assembly, a handle pivotally mounted to the L-shaped groove of the saw arm assembly for rotatable movement relative to the saw arm assembly, and a locking mechanism mounted to the handle for locking the handle to the saw arm assembly. Before operation, the handle is adjusted to the best angle that the user can conveniently apply the force, so that the user can operate the sawing machine easily and conveniently.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: June 30, 2009
    Assignee: Durq Machinery Corp.
    Inventors: Chia-Sheng Liu, Chieh-Yuan Tsai
  • Patent number: 7438098
    Abstract: A worktable includes two first rails arranged in parallel on a base, two guide rods movable along the first rails in a first direction and a second direction reversed to the first direction, two second rails respectively slidably coupled to the guide rods, a sliding plate fixedly mounted on the second rails, and a positioning device for locking the sliding plate to stop the sliding plate from movement relative to the base.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: October 21, 2008
    Assignee: Durg Machinery Corp.
    Inventors: Chia-Sheng Liu, Chieh-Yuan Tsai
  • Publication number: 20080115644
    Abstract: A sawing machine includes a base, a saw arm assembly pivotally connected to the base and having a L-shaped groove defined therein, a saw blade pivotally mounted to the saw arm assembly, a handle pivotally mounted to the L-shaped groove of the saw arm assembly for rotatable movement relative to the saw arm assembly, and a locking mechanism mounted to the handle for locking the handle to the saw arm assembly. Before operation, the handle is adjusted to the best angle that the user can conveniently apply the force, so that the user can operate the sawing machine easily and conveniently.
    Type: Application
    Filed: March 27, 2007
    Publication date: May 22, 2008
    Applicant: Duro Machinery Corporation
    Inventors: Chia-Sheng Liu, Chieh-Yuan Tsai
  • Patent number: 7373961
    Abstract: A worktable includes two first rails arranged in parallel on a base, two guide rods movable along the first rails in a first direction and a second direction reversed to the first direction, two second rails respectively slidably coupled to the guide rods, a sliding plate fixedly mounted on the second rails, and a positioning device for locking the sliding plate to stop the sliding plate from movement relative to the base.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: May 20, 2008
    Assignee: Durq Machinery Corp.
    Inventors: Chia-Sheng Liu, Chieh-Yuan Tsai
  • Publication number: 20070284017
    Abstract: A worktable includes two first rails arranged in parallel on a base, two guide rods movable along the first rails in a first direction and a second direction reversed to the first direction, two second rails respectively slidably coupled to the guide rods, a sliding plate fixedly mounted on the second rails, and a positioning device for locking the sliding plate to stop the sliding plate from movement relative to the base.
    Type: Application
    Filed: April 11, 2007
    Publication date: December 13, 2007
    Inventors: Chia-Sheng Liu, Chieh-Yuan Tsai
  • Publication number: 20070246124
    Abstract: A worktable includes two first rails arranged in parallel on a base, two guide rods movable along the first rails in a first direction and a second direction reversed to the first direction, two second rails respectively slidably coupled to the guide rods, a sliding plate fixedly mounted on the second rails, and a positioning device for locking the sliding plate to stop the sliding plate from movement relative to the base.
    Type: Application
    Filed: April 11, 2007
    Publication date: October 25, 2007
    Inventors: Chia-Sheng Liu, Chieh-Yuan Tsai
  • Patent number: 7240706
    Abstract: A worktable includes two first rails arranged in parallel on a base, two guide rods movable along the first rails in a first direction and a second direction reversed to the first direction, two second rails respectively slidably coupled to the guide rods, a sliding plate fixedly mounted on the second rails, and a positioning device for locking the sliding plate to stop the sliding plate from movement relative to the base.
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: July 10, 2007
    Assignee: Durq Machinery Corp.
    Inventors: Chia-Sheng Liu, Chieh-Yuan Tsai
  • Patent number: 7222648
    Abstract: For mounting on the beam of a mobile stand to hold a machine, a bracket assembly includes a bracket body supportable on the beam of the mobile stand, a front clamp mounted in the bracket body for clamping on the beam of the stand, a rear clamp pivoted to the bracket body, and a locking control device pivotally mounted in the bracket body for operation by the user to impart a biasing force to the rear clamp for enabling the rear clamp to be firmly clamped on the beam of the stand so as to further hold down the machine on the beam.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: May 29, 2007
    Assignee: Durq Machinery Corp.
    Inventors: Chia-Sheng Liu, Chieh-Yuan Tsai
  • Publication number: 20060272744
    Abstract: For mounting on the beam of a mobile stand to hold a machine, a bracket assembly includes a bracket body supportable on the beam of the mobile stand, a front clamp mounted in the bracket body and clamped on the beam of the stand, a rear clamp pivoted to the bracket body, and a locking control device pivotally mounted in the bracket body for operation by the user to impart a biasing force to the rear clamp for enabling the rear claim firmly clamped on the beam of the stand so as to further hold down the machine on the beam between the front clamp and the rear clamp.
    Type: Application
    Filed: August 26, 2005
    Publication date: December 7, 2006
    Applicant: DURQ MACHINERY CORP.
    Inventors: Chia-Sheng Liu, Chieh-Yuan Tsai
  • Publication number: 20060219075
    Abstract: A saw blade adjustment structure used in a table saw for correcting the position of a saw blade of a saw unit includes a supporting member provided below the bottom side of the table of the table saw to support the saw unit of the table saw, and an adjustment device, which includes a driven member connected to the supporting member and a rotating member that has an eccentric portion for moving the driven member to correct the position of the saw blade upon rotation of the rotating member by an external rotary driving force.
    Type: Application
    Filed: June 15, 2005
    Publication date: October 5, 2006
    Applicant: DURQ MACHINERY CORP.
    Inventors: Chia-Sheng Liu, Chieh-Yuan Tsai
  • Publication number: 20060213579
    Abstract: A worktable includes two first rails arranged in parallel on a base, two guide rods movable along the first rails in a first direction and a second direction reversed to the first direction, two second rails respectively slidably coupled to the guide rods, a sliding plate fixedly mounted on the second rails, and a positioning device for locking the sliding plate to stop the sliding plate from movement relative to the base.
    Type: Application
    Filed: June 10, 2005
    Publication date: September 28, 2006
    Applicant: DURQ MACHINERY CORP.
    Inventors: Chia-Sheng Liu, Chieh-Yuan Tsai