Patents by Inventor Chih-Ching Hsien

Chih-Ching Hsien 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).

  • Tool box tray structure
    Publication number: 20050011788
    Abstract: A tool box tray structure includes a molded recess for mounting hand tools of different types. The molded recess includes a first layer having a first color and a second layer having a second color bonded on the first layer. Thus, the tool box tray structure is made of different colors of PET plates which are worked by a secondary heat press process to form the tool box tray structure having different colors, thereby facilitating the user identifying the kinds of the hand tools by the color contrast.
    Type: Application
    Filed: July 14, 2003
    Publication date: January 20, 2005
    Inventor: Chih-Ching Hsien
  • Wrench having rotation adjustment effect
    Publication number: 20050011317
    Abstract: A wrench includes a first handle provided with a first rotation seat, and a second handle provided with a second rotation seat rotatably mounted on the first rotation seat of the first handle. Thus, the first rotation seat of the first handle can be rotated relative to the second rotation seat of the second handle, so that the first handle has a driving face inclined with that of the second handle, thereby facilitating the user operating the first handle or the second handle to rotate the workpiece.
    Type: Application
    Filed: July 17, 2003
    Publication date: January 20, 2005
    Inventor: Chih-Ching Hsien
  • Pliers assembly
    Publication number: 20050011321
    Abstract: A pliers assembly includes a first body, a second body pivotally connected with the first body, and an elastic member urged between the first body and the second body and entirely sealed by the first body and the second body. Thus, the elastic member is entirely received in the pliers assembly without being exposed outward, thereby preventing the elastic member from springing outward from the pliers assembly when the elastic member is broken, so as to protect the user's safety.
    Type: Application
    Filed: July 17, 2003
    Publication date: January 20, 2005
    Inventor: Chih-Ching Hsien
  • Wrench having identification function
    Publication number: 20050011320
    Abstract: A wrench includes a handle portion having a driving head having a peripheral wall provided with a plurality of protruding resting portions and a plurality of concave portions connected between the resting portions. The peripheral wall of the driving head is provided with three protruding portions each mounted in one of the concave portions. Thus, by indication of the larger spacing and the color of the three colored protruding portions of the driving head, the user can easily and quickly identify if the nut can or cannot pass through the driving head of the wrench, thereby facilitating the user employing the wrench to operate the nut.
    Type: Application
    Filed: July 17, 2003
    Publication date: January 20, 2005
    Inventor: Chih-Ching Hsien
  • Wrench structure having a strengthened handle
    Publication number: 20050011316
    Abstract: A wrench structure includes a wrench body having a handle portion. The handle portion is formed with a reinforcement portion having a first side formed with a first holding portion and a second side formed with a second holding portion. The first holding portion has a plane vertical to that of the second holding portion. Thus, the user's hand and the holding portion of the wrench body have a larger contact area, so that the holding portion of the wrench body can apply a larger force and torque to drive and rotate the workpiece, such as the nut or the like.
    Type: Application
    Filed: July 17, 2003
    Publication date: January 20, 2005
    Inventor: Chih-Ching Hsien
  • ONE-WAY PATCHET WRENCH
    Publication number: 20050000325
    Abstract: A one-way ratchet wrench includes a wrench body, a ratchet wheel, an elastic member, and a pawl member. Thus, the elastic member limits transverse and longitudinal movement of the locking portion of the pawl member, so that the pawl member is positioned rigidly and stably. In addition, the locking portion of the pawl member is rested on a side of the elastic member, thereby preventing the elastic member from producing fatigue.
    Type: Application
    Filed: July 1, 2003
    Publication date: January 6, 2005
    Inventor: Chih-Ching Hsien
  • Twisted handle for hand tools
    Publication number: 20050000328
    Abstract: A hand tool includes a handle and at least one operation end is connected to an end of the handle. The handle includes a first section and a second section, a twist portion is connected between the first section and the second section. The second section has a wide surface which is located on a plane which is perpendicular to a plane where a surface of the at least one operation end is located. The user applies a force at the wide surface to rotate the at least one operation end so that the user's hand is suffered less pressure.
    Type: Application
    Filed: July 3, 2003
    Publication date: January 6, 2005
    Inventor: Chih-Ching Hsien
  • Tool box having positioning effect
    Publication number: 20050000836
    Abstract: A tool box includes a main body formed with a plurality of receiving recesses for receiving and locking a plurality of sockets. Each of the receiving recesses has a first wall formed with a first locking portion and a second wall formed with a second locking portion. Each of the sockets has a first end locked on the first locking portion of the respective receiving recess and a second end locked on the second locking portion of the respective receiving recess. Thus, the first locking portion and the second locking portion form a three-point locking effect, so that the socket is positioned in the respective receiving recess rigidly and stably without sway.
    Type: Application
    Filed: July 1, 2003
    Publication date: January 6, 2005
    Inventor: Chih-Ching Hsien
  • Electronic torsional tool
    Publication number: 20040261542
    Abstract: An electronic torsional tool includes a main body, and a strain gauge mounted in the main body. The main body is provided with an opening to enhance flexibility of the main body and to increase deformation of the strain gauge. The opening is extended through the handle portion and the drive portion of the main body, thereby enhancing deformation of the main body, and thereby increasing deformation (or distortion) of the strain gauge, so as to detect and obtain the torsion values exactly.
    Type: Application
    Filed: June 25, 2003
    Publication date: December 30, 2004
    Inventor: Chih-Ching Hsien
  • Electronic torsional tool
    Publication number: 20040261588
    Abstract: An electronic torsional tool includes a main body provided with an opening, and an extending rod mounted in the main body and extended through a longitudinal length of the opening of the main body, so as to enhance flexibility of the main body. Thus, the opening and the extending rod of the main body can enhance flexibility and deformation of the main body, so as to increase deformation of the strain gauge.
    Type: Application
    Filed: June 25, 2003
    Publication date: December 30, 2004
    Inventor: Chih-Ching Hsien
  • Method for forming receiving hole in adjustable spanner
    Patent number: 6834566
    Abstract: A working method includes: forming a slideway in a drive portion of an adjustable spanner, forming a substantially inverted U-shaped hole in the drive portion, and forming an oblique hole in a connection of the drive portion and a fixed jaw of the adjustable spanner. The slideway, the inverted U-shaped hole and the oblique hole form a receiving hole. Thus, the method uses the milling technology to simplify the procedure of forming the receiving hole in the adjustable spanner, thereby saving time and cost of fabrication.
    Type: Grant
    Filed: October 9, 2003
    Date of Patent: December 28, 2004
    Inventor: Chih-Ching Hsien
  • Handle structure for hand tool
    Publication number: 20040250663
    Abstract: A handle structure for a hand tool includes a handle portion having a top face integrally formed with an upper auxiliary body and a bottom face integrally formed with a lower auxiliary body. Thus, the upper auxiliary body and the lower auxiliary body forming a larger force bearing region to increase the force bearing area of the handle portion, thereby facilitating a user's hand holding the handle portion.
    Type: Application
    Filed: June 13, 2003
    Publication date: December 16, 2004
    Inventor: Chih-Ching Hsien
  • Ratchet tool having operation levers on two sides of the tool
    Publication number: 20040244544
    Abstract: A ratchet tool includes a head having a hole defined therethrough for an engaging member engaged therewith and a recess is defined in an inner periphery of the hole so as to receive a pawl therein. The pawl has a toothed surface which is engaged with a toothed outer periphery of the engaging member. Two operation levers are respectively connected to two opposite sides of the tool and a torsion spring is biased between respective one of the two operation levers and a side of the pawl.
    Type: Application
    Filed: July 14, 2004
    Publication date: December 9, 2004
    Inventor: Chih-Ching Hsien
  • Wrench structure having a driving mechanism
    Publication number: 20040226411
    Abstract: A wrench structure includes a wrench body, a rotation member, a driving mechanism, and a power supply device. Thus, the wrench structure can be both operated electrically and manually. In addition, the rotation member is wholly hidden in the drive head of the wrench body without detachment, thereby facilitating operation of the drive head of the wrench body. Further, the bevel gear of the driving rod and the bevel gear of the rotation member have a larger contact area, so that the wrench structure has a larger driving torsion.
    Type: Application
    Filed: May 15, 2003
    Publication date: November 18, 2004
    Inventor: Chih-Ching Hsien
  • Pliers
    Publication number: 20040221695
    Abstract: A pair of pliers include two pivot members pivotally connected with each other. Each of the two pivot members has an end formed with a handle including an upper auxiliary body and a lower auxiliary body to enhance a hand-held area of the handle, thereby facilitating a user hand holding the handle. In addition, the handle of each of the two pivot members has an upper auxiliary body and a lower auxiliary body to provide a better holding effect to the user, so that the user has a comfortable sensation when holding the handle.
    Type: Application
    Filed: May 8, 2003
    Publication date: November 11, 2004
    Inventor: Chih-Ching Hsien
  • Ratchet wrench having a sealing structure
    Publication number: 20040221687
    Abstract: A ratchet wrench includes a wrench body having a drive head formed with a receiving recess, a ratchet wheel rotatably mounted in the receiving recess of the drive head, a positioning member secured in the receiving recess of the drive head and secured on the ratchet wheel to retain the ratchet wheel in the receiving recess of the drive head, and an oil seal secured in the receiving recess of the drive head and enclosed around the positioning member. Thus, the positioning member is a C-shaped snap that can abut and press the oil seal so as to position the oil seal actually, so that the oil seal has a better positioning effect.
    Type: Application
    Filed: May 8, 2003
    Publication date: November 11, 2004
    Inventor: Chih-Ching Hsien
  • Wrench device with a socket assembly
    Publication number: 20040216567
    Abstract: A wrench socket assembly comprises a socket having a main body; the main body including: an upper end portion being coated with silver thin film and having an inside formed with a mounting recess; the mounting recess of the main body of the socket having a wall formed with at least one positioning hole; the upper end portion of the main body having a peripheral wall formed with at least one through hole penetrating through the peripheral wall of the mounting recess; and a lower end portion having a color different from that of the upper end portion. A wrench with a pin can be used with the socket. The pin can be locked into the through hole or the positioning hole of the mounting recess so as to fix the socket to the wrench.
    Type: Application
    Filed: May 11, 2004
    Publication date: November 4, 2004
    Inventor: Chih-Ching Hsien
  • Wrench tool having magnet connected thereto
    Patent number: 6810774
    Abstract: A wrench includes two jaws extending from an end of a handle and a hole is defined in one of the jaws. The hole communicates with a clamping surface of the jaw having the hole and a magnet is received in the hole. The magnet attracts the object that is clamped by the wrench while in use.
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: November 2, 2004
    Inventor: Chih-Ching Hsien
  • Golf tee structure with adjustable height
    Patent number: 6811499
    Abstract: A golf tee structure includes a lower body, and an upper body. The lower body has an inside formed with a hollow portion. The upper body is adjustably mounted on the lower body and has a lower portion formed with an adjusting rod retractably mounted in the hollow portion of the lower body. Thus, the height of the golf tee structure can be adjusted arbitrarily so as to fit the requirement of users of different stature. In addition, the adjusting rod of the upper body can be locked on the hollow portion of the lower body rigidly and stably.
    Type: Grant
    Filed: April 9, 2003
    Date of Patent: November 2, 2004
    Inventor: Chih-Ching Hsien
  • Wrench
    Patent number: D499619
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: December 14, 2004
    Inventor: Chih-Ching Hsien