Patents by Inventor Fu-Yi Chan

Fu-Yi Chan 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: 11203101
    Abstract: A torque structure includes a first body set, and a second body set. The second body set has a torque slip function. The second body set includes a second body, a drive head, a resisting module, a plurality of balls, and a mounting ring. The second body is provided with a third receiving recess and a plurality of ball slots. The drive head is connected with the second body. The resisting module is received in the third receiving recess and includes a first abutting element. The mounting ring is mounted on the second body and has an interior provided with a fourth receiving recess. The balls are received in the ball slots and located between the first abutting element and the fourth receiving recess.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: December 21, 2021
    Inventor: Fu-Yi Chan
  • Publication number: 20180126518
    Abstract: A cross wrench includes a first part having a passage, a first receiving recess, a first connection portion, a second receiving recess and a second connection portion. A second part unit includes a second part which is perpendicular to the first part. The second part includes a third connection portion, a fourth connection portion and multiple first engaging portions. A third part unit is connected to the first part. The first part, the second part unit and the third part unit are connected to form a cross wrench. The third part unit includes a third part which has two sixth connection portions which are selectively connected to the first connection portion of the first part.
    Type: Application
    Filed: November 9, 2016
    Publication date: May 10, 2018
    Inventor: Fu-Yi Chan
  • Patent number: 9463559
    Abstract: A tool positioning device includes a rod, a movable member, a bead, a resilient member, a sleeve, a fixing ring and a rotary unit. The rod has a function end and a rectangular head respectively on two ends thereof. The rectangular head has a first recess, a second recess and a hole. The movable member is located in the first recess and has a cone-shaped section. The bead is located in the second recess. The connector extends through the hole and the through hole, and biased by the resilient member. The sleeve is mounted to the rod and has a shoulder. The connector contacts the shoulder. The connector moves within the first hole to move the movable member within the first recess by pulling the sleeve so that the cone-shaped section is backward and the bead is retracted into the second recess to release the tool attached to the rod.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: October 11, 2016
    Inventor: Fu-Yi Chan
  • Publication number: 20150102567
    Abstract: A tool joint is revealed. The tool joint includes a first main body, a second main body, locking members and a sleeve set. The first main body consists of a mounting part, a stopping part and a rear part. The second main body is disposed in the mounting part and having a polygonal assembly slot penetrating the second main body. Insertion holes are disposed close to an opening end of the assembly slot. The second main body is a polygonal column whose shape matches that of the polygonal assembly slot. The locking member is against the stopping part. The sleeve set is mounted in the assembly slot. The tool joint features on that the second main body is unable to rotate radially in the mounting part by the polygonal column design of the second main body locked with walls of a polygonal slot of the mounting part.
    Type: Application
    Filed: October 16, 2013
    Publication date: April 16, 2015
    Inventor: FU-YI CHAN
  • Patent number: 7380482
    Abstract: A high-strength ratchet structure for ratchet wrench is disclosed to include a driving block with two transverse sliding grooves, two pairs of directional block members respectively movably mounted in the sliding grooves of the driving block, two spring members respectively mounted in the sliding grooves and supported between the associating directional block members, a ratchet member coupled to the driving block, and a direction control ring selectively set in a first position where the ratchet member is locked to the driving block, a second position where the ratchet member is prohibited from clockwise rotation relative to the driving block and allowed for counter-clockwise rotation relative to the driving block, or a third position where the ratchet member is prohibited from counter-clockwise rotation relative to the driving block and allowed for clockwise rotation relative to the driving block.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: June 3, 2008
    Inventor: Fu-Yi Chan
  • Patent number: 7156002
    Abstract: A tool shaft and tool bit arrangement is disclosed to include a hollow shaft, which has a hexagonal through hole through the two ends to accommodate a number of tool bits in a line, a locating block held down by a clamp in a radial through hole near the front end of the shaft to hold down the first tool bit, a steel ball held down by a clamp in a radial through hole near the rear end of the shaft to hold down the last tool bit, and a grip fixedly fastened to the periphery of the rear end of the shaft.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: January 2, 2007
    Inventor: Fu-Yi Chan