Patents by Inventor Tsun-Tsai Yeh

Tsun-Tsai Yeh 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: 20030209043
    Abstract: An electronically-driven lock (1) includes an inner lock unit (2), an outer lock unit (5), a bolt assembly (3) having a latch, and a transmission shaft (4) extending through the bolt assembly to actuate the latch. The inner lock unit includes a base (80), a driving unit (60), a clutch (50), a knob (30), and a top cover (20) covering the base. The driving unit includes a gear plate (64). The gear plate includes a pair of driving protrusions (641). The knob has a mating shaft (32) fittingly receiving the transmission shaft therein. The clutch includes a pair of driven protrusions (541), and defines a generally rectangular mating slot (52) fittingly receiving the mating shaft therethrough. The driving protrusions engage the driven protrusions to rotate the clutch. The clutch accordingly rotates the mating shaft of the knob to rotate the transmission shaft. Thus the latch can be actuated to locked position or unlocked.
    Type: Application
    Filed: December 26, 2002
    Publication date: November 13, 2003
    Inventors: Tsun-Tsai Yeh, Tso-Tung Yu
  • Publication number: 20030209042
    Abstract: An electronically operated lock (1) includes a two-part lock unit (2), a latch (5), and a transmission shaft (4). The lock unit includes a base (80), a top cover (20) covering the base, a driving unit (60), a handle assembly (30), and a clutch (50). The driving unit includes a gear plate (64). The gear plate includes a pair of driving protrusions (641). The handle assembly includes a controller shaft (32) fittingly receiving the transmission shaft therein, and a pinion (35). A first annular gear portion (321) is formed on a bottom of the controller shaft. The clutch includes a pair of driven protrusions (521), and a second annular gear portion (56). The driving protrusions engage the driven protrusions to rotate the clutch. The second annular gear portion meshes with the first annular gear portion via the pinion. Accordingly, the latch can be actuated between a locked state and an unlocked state.
    Type: Application
    Filed: December 26, 2002
    Publication date: November 13, 2003
    Inventors: Tsun-Tsai Yeh, Tso-Tung Yu
  • Patent number: 6609736
    Abstract: A motor-driven lock (2) includes a housing (3), a lock body (4), a motor (5), a transmission device (6) mating with the motor and the lock body, a lid (7), an enclosure (8), and a cover (9). The lock body includes a controller (41) having a gear portion (410), and a cap (43) attached to the controller. The transmission device includes a first gearshaft (60) mating with the motor, a second shaft (61) meshed with the first gearshaft, a wheel (62) meshed with the second gear shaft, a screw shaft (63) fixing the wheel thereon, a slider (64) mating with the screw shaft, a yoke (65) slidingly movable along the housing and actuatable by the slider, and a gear set (66) attached to the cap of the lock body, meshed with the gear portion of the lock body and mated with either of two racks (653) of yoke.
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: August 26, 2003
    Assignee: Kinyo Co., Ltd.
    Inventor: Tsun-Tsai Yeh
  • Publication number: 20030071470
    Abstract: A motor-driven lock (2) includes a housing (3), a lock body (4), a motor (5), a transmission device (6) mating with the motor and the lock body, a lid (7), an enclosure (8), and a cover (9). The lock body includes a controller (41) having a gear portion (410), and a cap (43) attached to the controller. The transmission device includes a first gearshaft (60) mating with the motor, a second shaft (61) meshed with the first gearshaft, a wheel (62) meshed with the second gear shaft, a screw shaft (63) fixing the wheel thereon, a slider (64) mating with the screw shaft, a yoke (65) slidingly movable along the housing and actuatable by the slider, and a gear set (66) attached to the cap of the lock body, meshed with the gear portion of the lock body and mated with either of two racks (653) of yoke.
    Type: Application
    Filed: March 26, 2002
    Publication date: April 17, 2003
    Inventor: Tsun-Tsai Yeh
  • Publication number: 20030061849
    Abstract: A motor-driving lock includes a lock bolt for mounting in a door and having a rotary core and a latch drivably connected with the core. An inner lock unit having a base for being attached to an inside of the door, having a transmission mechanism having a rotary shaft rotated by a drive device. An outer lock unit for being attached to an outside of the door and having an elongated rotor rotatably mounted in the outer lock unit and fittingly extending through the rotary core and the rotary shaft such that when the rotary shaft rotates, the rotary core rotates accordingly, thereby to motivate the latch to extend or retract. The drive device includes a motor for driving a worm via a group of gears. The worm is use for driving a furcated component to move linearly. The furcated component has a rack engaging with a driven gear which is secured with the rotary shaft.
    Type: Application
    Filed: March 26, 2002
    Publication date: April 3, 2003
    Inventor: Tsun-Tsai Yeh
  • Patent number: 6032991
    Abstract: An electrically operable tubular lock assembly includes a support to be mounted on an inner side of a door, a hollow cylinder having an outer end mounted on the support and an inner end extending inwardly from the support, a spindle extending axially inside the hollow cylinder and connected to the hollow cylinder for simultaneous rotation therewith, a rotary handle body connected to the inner end of the hollow cylinder, a driving wheel mounted on the support around the hollow cylinder and having a first gear part adjacent to the support and a second gear part adjacent to the handle body, an electric motor mounted on the support adjacent to and externally of the driving wheel, a first transmission mechanism mounted on the support and connected to the first gear part and the motor, and a second transmission mechanism mounted inside the handle body and connected to the second gear part and the spindle.
    Type: Grant
    Filed: April 27, 1999
    Date of Patent: March 7, 2000
    Inventor: Tsun-Tsai Yeh
  • Patent number: D351173
    Type: Grant
    Filed: April 19, 1993
    Date of Patent: October 4, 1994
    Inventor: Tsun-Tsai Yeh