Patents by Inventor Ming-De Wu

Ming-De Wu 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: 20240141939
    Abstract: A chassis quick release device includes a housing including a base with a connected sliding channel and accommodating space therein and a cover assembled with the base, a locking block linearly movably set in the accommodating space, and an operating handle having a rod body positioned on the sliding channel and a grip assembled with the rod body. The rod body has a cylindrical joint that corresponds to the grip and has a shaft groove defined therein. The grip is provided with a sleeve corresponding to the cylindrical joint and defining therein an accommodating cavity. Moving the operating handle in the direction of the housing causes the locking block to slide out from the accommodating space to form a locked state. Pulling the operating handle away from the housing causes the locking block to move linearly in a second direction to form an unlocked state.
    Type: Application
    Filed: January 2, 2024
    Publication date: May 2, 2024
    Inventors: Ying-Chih TSENG, Ming-De WU, Ching-Kai CHANG
  • Publication number: 20240081017
    Abstract: A chassis quick release device includes a housing including a base provided with a sliding channel, a compression space, and accommodating space, a rotating space and a shaft in the rotating space and covered with a cover, a locking block linearly movably set in the accommodating space and providing a guide groove, a guide chamber, a receiving groove and an elastic member set in the receiving groove, a locking member having a shaft hole coupled to the shaft, a rotary reset member positioned on the shaft, resisting edge located at one end thereof that can rotate and protrude from the housing and a locking edge located at the other end thereof, and an operating handle including a rod body positioned in the sliding channel, the guide groove and the guide chamber and mounted with a grp and having a locking portion stopped against the guide chamber.
    Type: Application
    Filed: May 3, 2023
    Publication date: March 7, 2024
    Inventors: Ying-Chih TSENG, Ming-De WU, Ching-Kai CHANG
  • Publication number: 20230375032
    Abstract: Floating fastener includes base including main body provided with through hole, resisting ring protruded inside through hole, seat body extended around main body and docking portion protruded from seat body, positioning member having shank inserted into through hole, head located at one end of shank outside main body, joint portion located at an opposite end of shank to move in and out of docking portion and stopper provided between joint portion and shank to abut against resisting ring, elastic member set on shank and stopped between head and resisting ring, and pad provided with inner hole which is inserted outside docking portion of base, so that pad abuts against seat body near the docking portion. The pad is made of soft material, which can achieve the purpose of absorbing the shaking and vibration of the floating fastener under the influence of external force.
    Type: Application
    Filed: May 18, 2022
    Publication date: November 23, 2023
    Inventors: Ming-De WU, Chih-Yuan CHEN
  • Publication number: 20230340978
    Abstract: A floating fastener with shock-absorbing structure includes a base having a cylindrical portion and a bottom plate and an abutment ring and an inner ring formed in the cylindrical portion, a fixing element having a head, a shank and locking portion, a flexible liner having a top-sided positioning embedding portion placed in a first fixing hole of a preset first plate, a positioning tube having a tube body and a protruding ring portion, and a buffer pad having a ring groove positioned on the protruding ring portion of the positioning tube. The assembly structure of the positioning tube and the buffer pad is placed outside the cylindrical portion of the base from top to bottom through the perforation of the positioning tube to form a positioning, and the bottom side of the buffer pad is held against the upper surface of the preset first plate.
    Type: Application
    Filed: January 23, 2023
    Publication date: October 26, 2023
    Inventors: Ming-De WU, Ching-Kai CHANG, Ying-Chih TSENG
  • Publication number: 20230175542
    Abstract: A rotary positioning device includes a base, a fixing seat assembled on the shaft and stopper of the base and having and a movable positioning body respectively placed in each horizontal through-hole thereof, a rotation unit including a driving member and a rotating member and assembled outside the fixing seat, the driving member including a rotating shaft movably installed inside the protruding shaft portion of the fixing seat and a connecting portion located on one side of the rotating shaft, the rotating member including two inner shoulders that rotate and resist or retreat from the clamping portion of the fixing seat and two pushing portions for pressing the respective movable positioning bodies for lateral displacement in each through-hole, and an elastic member placed between the protruding shaft portion of the fixing seat and the rotating shaft of the driving member.
    Type: Application
    Filed: February 7, 2023
    Publication date: June 8, 2023
    Inventors: Ming-De WU, Ching-Kai CHANG
  • Publication number: 20230128386
    Abstract: A pressable locating device and a driving mechanism are disclosed. The locating device includes a shaft, a restraining rod and a restraining member; an accommodation space and a shaft hole of a sleeve of the driving mechanism are mounted on the shaft, the restraining rod and the restraining member. The pressing unit is movably assembled in the accommodation space and includes an inner sliding channel disposed on a bottom thereof, and the restraining member and the restraining rod are movably slid in the inner sliding channel. The inner sliding channel includes a through hole formed on a side thereof, and a locating member is axially movable in the through hole, so as to radially move to restrain with or depart from the restraining rod, along the restraining member. An elastic part is disposed and reciprocated between the bottom of the pressing unit and the accommodation space.
    Type: Application
    Filed: October 26, 2021
    Publication date: April 27, 2023
    Inventors: Ming-De WU, Ching-Kai CHANG
  • Publication number: 20230116676
    Abstract: A push controlled positioning device includes a base with a through shaft hole, a push block horizontally and slidably coupled to the base and holding two limiting balls in two opposite through holes, and an axle seat with a shaft rod inserted into the shaft hole of the base and locked in place by the limiting balls under the effect of the elastic restoring force of an elastic member in the push block. When the push block is pushed laterally, the balls enter respective loosening grooves in the push block to unlock the axle seat, allowing removable of the base and the push block from the axle seat.
    Type: Application
    Filed: April 18, 2022
    Publication date: April 13, 2023
    Inventors: Ming-De WU, Ching-Kai CHANG, Ying-Chih TSENG
  • Publication number: 20230110234
    Abstract: A board to board positioning device includes a base including a shaft hole inside, two through hole arranged at two opposite sides perpendicular to the shaft hole and respectively mounted with a limiting ball, a connecting portion and a limiting portion respectively provided at two sides and two limiting grooves for aligning with the two through holes, and an adjustment knob including an operation space for the base to pass through, a sliding wall surface positioned against the through holes, a driving portion positioned against the limiting portion and a marking portion provided on the outside. The sliding wall surface has a pressing side and a retreating side used to push the limiting balls into and out of the through holes. The driving portion is protruded with locking protrusions that are used to rotate and slide along the limiting portion to enter and exit the limiting grooves.
    Type: Application
    Filed: April 5, 2022
    Publication date: April 13, 2023
    Inventors: Ming-De WU, Ching-Kai CHANG, Ying-Chih TSENG
  • Patent number: 11306753
    Abstract: Board member fastener used to rivet first board member and second board member. First and second board members each have drilled therein a different diameter of hole. First board member provides first through hole. Second board member provides second through hole. Top of first through hole of first board member is formed with stop surface that tapers toward outer diameter so that when board member fastener is punch impacted, board member fastener sinks into interior of first through hole to cut second board member and to deform, and first board member is forced by sinking stress of board member fastener and tightly pressed on second board member upon punch impact, and thus, board member fastener, first board member and second board member are deformed and fitted to each other, achieving a riveting structure that can be applied to different materials and can overcome deformation caused by heat expansion and contraction.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: April 19, 2022
    Assignee: HANWIT PRECISION INDUSTRIES LTD.
    Inventors: Ming-De Wu, Chih-Wei Chou
  • Patent number: 11109505
    Abstract: A locating device includes a guiding member, a sliding member and a pulling assembly. The guiding member includes a guiding channel inwardly cut through a top thereof, and the sliding member has side plates which each has a locating part. The pulling assembly comprises a pulling body having a guiding element, a fastening element disposed on a side thereof opposite to the guiding element. When the pulling body is in an open state, the fastening element is not located on the locating part; when the pulling body performs a locking operation, the guiding element is slid in the guiding channel and the sliding member is simultaneously slid in another direction opposite to the guiding element; when the pulling body is in a locked state, the fastening element is located on the locating part. Therefore, operational difficulty can be reduced and assembly speed can be improved.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: August 31, 2021
    Assignee: HANWIT PRECISION INDUSTRIES LTD.
    Inventors: Ming-De Wu, Ching-Kai Chang
  • Patent number: 11018452
    Abstract: A positioning fastener includes a base having a seat plate extended therefrom, a fixing portion disposed below the base for fastening to an electronic substrate, and an elastic positioning structure disposed above the base and including an urging plate, a pressing plate connected to the urging plate, a positioning space defined therein and a positioning member disposed at a bottom side thereof. The urging plate and the pressing plate are squeezed backwards and elastically deformed by a circuit board that is rotated downward so that the circuit board passes the urging plate and moves into the positioning space of the elastic positioning structure and a suspended board edge of the circuit board is secured in position by the positioning member. The pressing plate can be pressed by an external force to lift the urging plate, allowing the circuit board to be rotated in direction away from the positioning member.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: May 25, 2021
    Assignee: HANWIT PRECISION INDUSTRIES LTD.
    Inventors: Ming-De Wu, Ching-Kai Chang
  • Publication number: 20210102566
    Abstract: Board member fastener used to rivet first board member and second board member. First and second board members each have drilled therein a different diameter of hole. First board member provides first through hole. Second board member provides second through hole. Top of first through hole of first board member is formed with stop surface that tapers toward outer diameter so that when board member fastener is punch impacted, board member fastener sinks into interior of first through hole to cut second board member and to deform, and first board member is forced by sinking stress of board member fastener and tightly pressed on second board member upon punch impact, and thus, board member fastener, first board member and second board member are deformed and fitted to each other, achieving a riveting structure that can be applied to different materials and can overcome deformation caused by heat expansion and contraction.
    Type: Application
    Filed: November 24, 2020
    Publication date: April 8, 2021
    Inventors: Ming-De WU, Chih-Wei CHOU
  • Patent number: 10823211
    Abstract: A floating fastener includes a socket fastened to a first board member, a locking device axially slidably mounted in the socket and adapted for locking the socket and the first board member to a second board member, and an insulative barrel including a flexible barrel body attached onto the socket, a cap for capping on the barrel body to shield the locking device in the socket and to protect the socket and the locking device against corrosion and a flexible connecting strip connected between the barrel body and the cap.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: November 3, 2020
    Assignee: Hanwit Precision Industries Ltd.
    Inventors: Ming-De Wu, Chih-Yuan Chen
  • Patent number: 10759039
    Abstract: A handle mounting structure includes a handle including a handle shaft with a sliding space defined in one side thereof and a mounting unit located at one end thereof, a locking mechanism including an insert plate slidably inserted into the sliding space and a torsion spring mounted in the sliding space and stopped between the handle and the insert plate to impart a pressure to the insert plate toward the outside of the sliding space, and a positioning device including a flat base pivotally coupled to the handle and a hook block located at a bottom side of the flat base. The handle can be fastened to a sliding box of a cabinet through locking mechanism and the positioning device, so that the handle is not easily separated from the sliding box, and the sliding box can be surely pulled out of or pushed into the cabinet through the handle.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: September 1, 2020
    Assignee: HANWIT PRECISION INDUSTRIES LTD.
    Inventors: Ming-De Wu, Ching-Kai Chang
  • Publication number: 20200244008
    Abstract: A positioning fastener includes a base having a seat plate extended therefrom, a fixing portion disposed below the base for fastening to an electronic substrate, and an elastic positioning structure disposed above the base and including an urging plate, a pressing plate connected to the urging plate, a positioning space defined therein and a positioning member disposed at a bottom side thereof. The urging plate and the pressing plate are squeezed backwards and elastically deformed by a circuit board that is rotated downward so that the circuit board passes the urging plate and moves into the positioning space of the elastic positioning structure and a suspended board edge of the circuit board is secured in position by the positioning member. The pressing plate can be pressed by an external force to lift the urging plate, allowing the circuit board to be rotated in direction away from the positioning member.
    Type: Application
    Filed: September 24, 2019
    Publication date: July 30, 2020
    Inventors: Ming-De WU, Ching-Kai CHANG
  • Patent number: 10645822
    Abstract: A locating device includes casing including position-limiting member defining therein receiving space and two opposing receiving slots and mounting structure on two opposite side walls thereof, fitting member having recess, through hole cut through recess, axle structure provided in recess and positioning structure for positioning in mounting structure of casing, and operating device set including lever having pivot connection head inserted through through hole into receiving space, pivot connection portion located on pivot connection head and pivotally connected to axle structure and sliding slot located on pivot connection head and sliding rod movably mounted in sliding slot and having end portion located on each of two opposite ends thereof and disposed in receiving slot. Operating device set is movable relative to fitting member between an open position where the positioning structure is unlocked from mounting structure, and a close position where the positioning structure is locked to mounting structure.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: May 5, 2020
    Assignee: Hanwit Precision Industries Ltd.
    Inventors: Ming-De Wu, Ching-Kai Chang
  • Patent number: 10590971
    Abstract: A offset fastener includes socket including socket hole and bottom positioning portion affixed to first panel member, retaining shaft including shaft body axially movably positioned in socket hole and transversely movable relative to socket between center position and offset position, spring chamber transversely defined in shaft body, spring member mounted in spring chamber and floating ball supported on spring member and forced by spring member into abutment against an inside wall of socket that defines socket hole, positioning member axially extended from shaft body for inserting through positioning hole of second panel member when retaining shaft is disposed in center position and for locking retaining shaft to positioning hole when retaining shaft is moved to offset position, and stopper member fastened to retaining shaft and operable to move stopper member between center position and offset position.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: March 17, 2020
    Assignee: Hanwit Precision Industries Ltd.
    Inventor: Ming-De Wu
  • Publication number: 20200061800
    Abstract: A handle mounting structure includes a handle including a handle shaft with a sliding space defined in one side thereof and a mounting unit located at one end thereof, a locking mechanism including an insert plate slidably inserted into the sliding space and a torsion spring mounted in the sliding space and stopped between the handle and the insert plate to impart a pressure to the insert plate toward the outside of the sliding space, and a positioning device including a flat base pivotally coupled to the handle and a hook block located at a bottom side of the flat base. The handle can be fastened to a sliding box of a cabinet through locking mechanism and the positioning device, so that the handle is not easily separated from the sliding box, and the sliding box can be surely pulled out of or pushed into the cabinet through the handle.
    Type: Application
    Filed: August 21, 2018
    Publication date: February 27, 2020
    Inventors: Ming-De WU, Ching-Kai CHANG
  • Patent number: 10561034
    Abstract: A locating device includes a guiding member, a sliding assembly and a pulling assembly. The guiding member includes a guiding space, and the sliding assembly includes a shaft part. The pulling assembly includes a pulling member, and the pulling member includes a sliding member inserted into the guiding space. An axis coupling part is disposed between the sliding member and the pulling member and pivotally connected to the shaft part. When the pulling member of the pulling assembly is operated to open or close, the sliding member is longitudinally moved in the guiding space to make the sliding assembly simultaneously move laterally, so as to form an open state or a closed state. As a result, a complicated assembly operation using screw for locking can be omitted, and the effect of decreasing whole operational difficulty and improving whole assembling speed can be achieved.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: February 11, 2020
    Assignee: Hanwit Precision Industries Ltd.
    Inventor: Ming-De Wu
  • Publication number: 20190394889
    Abstract: A locating device includes casing including position-limiting member defining therein receiving space and two opposing receiving slots and mounting structure on two opposite side walls thereof, fitting member having recess, through hole cut through recess, axle structure provided in recess and positioning structure for positioning in mounting structure of casing, and operating device set including lever having pivot connection head inserted through through hole into receiving space, pivot connection portion located on pivot connection head and pivotally connected to axle structure and sliding slot located on pivot connection head and sliding rod movably mounted in sliding slot and having end portion located on each of two opposite ends thereof and disposed in receiving slot. Operating device set is movable relative to fitting member between an open position where the positioning structure is unlocked from mounting structure, and a close position where the positioning structure is locked to mounting structure.
    Type: Application
    Filed: March 19, 2019
    Publication date: December 26, 2019
    Inventors: Ming-De WU, Ching-Kai CHANG