Patents by Inventor Yi Tung CHAN

Yi Tung 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: 11739796
    Abstract: A central connector for a universal joint and a universal joint utilizing said central connector. The central connector includes a substantially cylindrical body. The connector further includes a first and second pair of arms positioned orthogonal to one another. The body of the central connector also includes a male spherically concave surface between the first pair of arms, a female spherically concave surface between the second pair of arms. The body further defines an opening allowing communication between the male and female spherically concave surfaces.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: August 29, 2023
    Assignee: STANLEY BLACK & DECKER MEA FZE
    Inventors: Ching-Yi Tu, Yi Tung Chan
  • Publication number: 20230113086
    Abstract: An adjustable sander having a body and a flexible base. The flexible base includes a first end and a second end spaced apart from one another. The first end and second end are each pivotally attached to the body. The flexible base is configured to move between a concave configuration, a neutral configuration, and a convex configuration relative to the body. The adjustable sander further includes a removable sanding surface affixed to a surface of the flexible base that is distal from the body. The adjustable sander also includes a locking mechanism configured to selectively hold the flexible base in a desired concave, neutral or convex configuration. The locking mechanism is characterized in that it includes an axial having a head and a shaft having a series of shaft notches.
    Type: Application
    Filed: October 6, 2022
    Publication date: April 13, 2023
    Inventors: ChihChiang LEE, Wan-Chiang WANG, Hui-Mei CHANG, Yen-ting WU, Yi Tung CHAN, Tsung-Chih TSAI, Yu-Wei TSAI
  • Patent number: 11253981
    Abstract: A ratchet wrench is provided, including a main body, a driving member, a restricting member, a switching member and an elastic abutting assembly. The main body has a first receiving, chamber, a second receiving chamber and a third receiving chamber which is communicated with the first receiving chamber and the second receiving chamber. One end of the second receiving chamber is formed with a larger diameter section, and the other end of the second receiving chamber is formed with a small diameter section. The driving member is rotatably assembled within the receiving chamber. The restricting member is disposed in the third receiving chamber and limitable to a rotational direction of the driving member. The switching member is rotatably disposed within the second receiving chamber and includes a rotatable member and a projection which extends from the rotatable member. The rotatable member is received in the larger diameter section and the projection is received in the small diameter section.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: February 22, 2022
    Assignee: STANLEY CHIRO INTERNATIONAL LTD.
    Inventor: Yi-Tung Chan
  • Publication number: 20210301881
    Abstract: The present invention relates to a central connector for a universal joint and a universal joint utilizing said central connector. The central connector includes a substantially cylindrical body. The connector further includes a first and second pair of arms positioned orthogonal to one another. The body of the central connector also includes a male spherically concave surface between the first pair of arms, a female spherically concave surface between the second pair of arms. The body further defines an opening allowing communication between the male and female spherically concave surfaces.
    Type: Application
    Filed: March 23, 2021
    Publication date: September 30, 2021
    Inventors: Ching-Yi TU, Yi Tung CHAN
  • Patent number: 10524590
    Abstract: A wrench support rack including a base, and at least one clamp assembly attached to the base and comprising a vertical stop spaced apart from a push member. The space in between the vertical stop and the push member forms a groove configured to receive a stem of a wrench. The vertical stop includes an upper ridge portion configured to engage a stem of a wrench and limit vertical movement of a wrench disposed in the groove. The push member includes an inward protrusion configured to press a stem of a wrench in to the vertical stop and limit horizontal movement of a wrench disposed in the groove.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: January 7, 2020
    Assignee: Stanley Chiro International Ltd.
    Inventors: Yen-ting Wu, Chihchiang Lee, Wan-chiang Wang, Yi Tung Chan, Ching-Yi Tu, Hui-Mei Chang
  • Publication number: 20190308302
    Abstract: A wrench extension device having an input and output, operably coupled together to transmit torque there between. The wrench extension device further includes a housing, with a first and second gear disposed therein. The first and second gear are operably coupled to one another with a chain. The wrench extension device further includes a rib disposed between the first and second gear. The rib includes a tapered portion that, along with an interior wall of the housing defines a tapered space. A tapered space defined by the tapered portion of the rib and the interior wall of the housing; wherein said tapered space is wide enough to allow a chain link to pass both horizontally and vertically, and wherein the area of said tapered space is large enough accommodate at least one additional chain links when the chain is slack as opposed to when it is taut.
    Type: Application
    Filed: April 10, 2019
    Publication date: October 10, 2019
    Inventors: ChihChiang LEE, Wan-Chiang WANG, Yi-Tung CHAN, Ching-Yi TU
  • Patent number: 10335929
    Abstract: A hand tool or wrench with a ratcheting mechanism. The wrench includes a number of components such as an abutting block and a pawl for use in a bistable ratchet operation. The wrench includes a ratchet mechanism that provides stable seating of the components, so that the mechanism is securely retained in a driving mode, as well as enabling a user to select a driving mechanism with ease so as to improve work efficiency.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: July 2, 2019
    Assignee: Stanley Chiro International Ltd.
    Inventors: Henry Chou, Yi Tung Chan
  • Publication number: 20190176299
    Abstract: A ratchet wrench is provided, including a main body, a driving member, a restricting member, a switching member and an elastic abutting assembly. The main body has a first receiving, chamber, a second receiving chamber and a third receiving chamber which is communicated with the first receiving chamber and the second receiving chamber. One end of the second receiving chamber is formed with a larger diameter section, and the other end of the second receiving chamber is formed with a small diameter section. The driving member is rotatably assembled within the receiving chamber. The restricting member is disposed in the third receiving chamber and limitable to a rotational direction of the driving member. The switching member is rotatably disposed within the second receiving chamber and includes a rotatable member and a projection which extends from the rotatable member. The rotatable member is received in the larger diameter section and the projection is received in the small diameter section.
    Type: Application
    Filed: May 26, 2017
    Publication date: June 13, 2019
    Inventor: Yi-Tung Chan
  • Publication number: 20190059614
    Abstract: A wrench support rack including a base, and at least one clamp assembly attached to the base and comprising a vertical stop spaced apart from a push member. The space in between the vertical stop and the push member forms a groove configured to receive a stem of a wrench. The vertical stop includes an upper ridge portion configured to engage a stem of a wrench and limit vertical movement of a wrench disposed in the groove. The push member includes an inward protrusion configured to press a stem of a wrench in to the vertical stop and limit horizontal movement of a wrench disposed in the groove.
    Type: Application
    Filed: August 30, 2017
    Publication date: February 28, 2019
    Inventors: Yen-ting WU, Chihchiang LEE, Wan-chiang WANG, Yi Tung CHAN, Ching-Yi TU, Hui-Mei CHANG
  • Publication number: 20180117742
    Abstract: A hand tool or wrench with a ratcheting mechanism. The wrench includes a number of components such as an abutting block and a pawl for use in a bistable ratchet operation. The wrench includes a ratchet mechanism that provides stable seating of the components, so that the mechanism is securely retained in a driving mode, as well as enabling a user to select a driving mechanism with ease so as to improve work efficiency.
    Type: Application
    Filed: July 28, 2017
    Publication date: May 3, 2018
    Inventors: Henry CHOU, Yi Tung CHAN
  • Publication number: 20180029202
    Abstract: A hand tool or wrench with a ratcheting mechanism. The wrench includes a number of components such as an abutting block and a pawl for use in a bistable ratchet operation. The wrench includes a ratchet mechanism that provides stable seating of the components, so that the mechanism is securely retained in a driving mode, as well as enabling a user to select a driving mechanism with ease so as to improve work efficiency.
    Type: Application
    Filed: July 28, 2017
    Publication date: February 1, 2018
    Inventors: Henry CHOU, Yi Tung CHAN
  • Patent number: 9099852
    Abstract: The tool comprises a body (2); a cable support head connected to the body; a knife holder supporting a cable sheath incision knife (8), the cutting portion (9) of the knife (8) being capable of extending beyond the knife holder. The knife holder (7) receives a socket (34) supporting the incision knife (8), and a clip (36) arranged so as to be movable inside the socket (34). The clip (36) is provided with a locking/unlocking opening intended to interact with a groove (102) arranged on the shaft (100) of the knife (8).
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: August 4, 2015
    Assignee: Stanley Works (Europe) GmbH
    Inventors: Julian Bignon-Zillhardt, Yi Tung Chan, Chihchiang Lee
  • Publication number: 20130333223
    Abstract: The tool comprises an elongated body (2) which extends along a longitudinal axis X-X; at least one retractable cutting blade (40), pivotally articulated to the body (2), the blade (40) being movable between a rest position in which it is closed, retracted inside the body (2), and a working position in which it is open, completely extended from the body (2). A channel (150) which is transverse in relation to the axis X-X is intended to receive an electrical conductor, the cutting edge (152) of the blade (40) interfering in the profile of the channel (150) in order to strip the conductor when the blade (40) is in a virtually closed position.
    Type: Application
    Filed: June 13, 2013
    Publication date: December 19, 2013
    Inventors: Julian BIGNON-ZILLHARDT, Yi Tung CHAN, Chihchiang LEE
  • Publication number: 20130333222
    Abstract: The tool comprises a body (2), a head (4), a knife holder (7) which is received in a sliding manner in relation to the body, an incision knife (8) which is supported by the knife holder, a biasing means (32) which acts on the knife holder to displace it towards the head, a gripping means (22) which is rigidly connected to the knife holder; the knife holder (7) is movable between an advanced position in which the knife (8) is moved closer to the head (4) under the action of the biasing means (32) and a retracted position in which the knife (8) is moved away from the head (4) against the action of the biasing means (32). The gripping means (22) is arranged adjacent to the free end of the knife holder and comprises a bearing face (62) adapted to receive the cable to be engaged in the head (4).
    Type: Application
    Filed: June 13, 2013
    Publication date: December 19, 2013
    Inventors: Julian BIGNON-ZILLHARDT, Yi Tung CHAN, Chihchiang LEE
  • Publication number: 20130333224
    Abstract: The tool comprises a body (2); a cable support head connected to the body; a knife holder supporting a cable sheath incision knife (8), the cutting portion (9) of the knife (8) being capable of extending beyond the knife holder. The knife holder (7) receives a socket (34) supporting the incision knife (8), and a clip (36) arranged so as to be movable inside the socket (34). The clip (36) is provided with a locking/unlocking opening intended to interact with a groove (102) arranged on the shaft (100) of the knife (8).
    Type: Application
    Filed: June 13, 2013
    Publication date: December 19, 2013
    Inventors: Julian BIGNON-ZILLHARDT, Yi Tung CHAN, Chihchiang LEE