Patents by Inventor Shih-Chieh Liu

Shih-Chieh Liu 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: 20250160490
    Abstract: The handle for a walking assistance device includes: a connecting joint, a handle member and a switching rod. The handle member is rotatably installed between the connecting joint and the two trunnions, and utilizes the switching rod and the first and second positioning slot of the two trunnions to achieve the positioning state of the handle member after swinging. Therefore, the connecting joint can adjust the angle of the handle member according to the usage status, so that it is suitable for the support use of general walking sticks and the assistive walking use of trekking poles both, which greatly improves the practicality and convenience of the structure, while saving the cost of purchasing crutches with different functions.
    Type: Application
    Filed: November 19, 2023
    Publication date: May 22, 2025
    Inventor: Shih- Chieh Liu
  • Patent number: 11847080
    Abstract: An all-in-one computer includes a display, a Universal Serial Bus (USB) Type-C port, a plurality of USB Type-A ports, a USB hub, a demultiplexer, and a Power Delivery (PD) controller. The USB hub is coupled to the plurality of USB Type-A ports. The demultiplexer is coupled between the display, the USB Type-C port, and the USB hub. The PD controller is to control the demultiplexer and the USB hub to pass a display signal input to the USB Type-C port to the display and pass signals input to the USB hub from the plurality of USB Type-A ports to the USB Type-C port with a computing device coupled to the USB Type-C port.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: December 19, 2023
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jui-Hsuan Chang, Chia-Ching Lu, Shih-Chieh Liu, Nam Hoang Nguyen
  • Publication number: 20230153257
    Abstract: An all-in-one computer includes a display, a Universal Serial Bus (USB) Type-C port, a plurality of USB Type-A ports, a USB hub, a demultiplexer, and a Power Delivery (PD) controller. The USB hub is coupled to the plurality of USB Type-A ports. The demultiplexer is coupled between the display, the USB Type-C port, and the USB hub. The PD controller is to control the demultiplexer and the USB hub to pass a display signal input to the USB Type-C port to the display and pass signals input to the USB hub from the plurality of USB Type-A ports to the USB Type-C port with a computing device coupled to the USB Type-C port.
    Type: Application
    Filed: April 30, 2020
    Publication date: May 18, 2023
    Inventors: Jui-Hsuan CHANG, Chia-Ching LU, Shih-Chieh Liu, Nam Hoang Nguyen
  • Patent number: 11364603
    Abstract: A ratchet wrench with electric assistance includes a wrench body, a ratchet device, a pawl device, and a switch device. The switch device is configured for optionally gearing the pawl device with the ratchet device, so that the ratchet wrench is operated in a clockwise or counterclockwise direction. During the directional changing process, the switch device optionally engages the first gear and the second gear with the transmission gear of the power device, such that the power device transmits the power to the ratchet device for controlling the clockwise or counterclockwise rotation of the ratchet device, realizing the ratchet wrench with an electric assistance function.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: June 21, 2022
    Assignee: YOU TENG INDUSTRY CO., LTD.
    Inventor: Shih-Chieh Liu
  • Publication number: 20220024003
    Abstract: A ratchet wrench with electric assistance includes a wrench body, a ratchet device, a pawl device, and a switch device. The switch device is configured for optionally gearing the pawl device with the ratchet device, so that the ratchet wrench is operated in a clockwise or counterclockwise direction. During the directional changing process, the switch device optionally engages the first gear and the second gear with the transmission gear of the power device, such that the power device transmits the power to the ratchet device for controlling the clockwise or counterclockwise rotation of the ratchet device, realizing the ratchet wrench with an electric assistance function.
    Type: Application
    Filed: July 27, 2020
    Publication date: January 27, 2022
    Inventor: SHIH-CHIEH LIU
  • Patent number: 11197523
    Abstract: An auxiliary handle for a walking assistance device has a tube seat and a handgrip tube. The tube seat utilizes the positioning space for accepting a crutch tube. When a user holds the handle portion of the handgrip tube and turns it downward; when the handgrip tube is turned, the positioning protrusion of the connecting portion moves from the stopping portion to the positioning portion and compresses the elastic member. When the handgrip tube is horizontal, the positioning protrusion passes over the stopping edge and inserts into the positioning portion for positioning to lock the handgrip tube and prevent the elastic member from rebounding. Meanwhile, the user holds a top grip on the top of the walking assistance device with one hand, and holds the handgrip tube with the other hand, and then applies force to support the body to get up and stand.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: December 14, 2021
    Assignee: HOMECARE ENTERPRISE CO., LTD.
    Inventor: Shih-Chieh Liu
  • Patent number: 10986903
    Abstract: A walking stick may include a tube body, a first telescopic tube, a second telescopic tube, and a third telescopic tube. The tube body is a hollow tube, and at least a positioning hole is formed thereon, and a top end and a bottom end of the tube body respectively connect to a handle and a locating sleeve. The first telescopic tube upwardly inserted into the tube body comprises a first locating piece. Also, the second telescopic tube upwardly inserted into the first telescopic tube has a second locating piece while the third telescopic tube upwardly inserted into the second telescopic tube comprises a third locating piece. A user only needs to press the first locating piece when the walking stick needs to be retracted, and the second telescopic tube and the third telescopic tube are sequentially retracted, which is convenient for operation.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: April 27, 2021
    Inventor: Shih-Chieh Liu
  • Publication number: 20210093056
    Abstract: An auxiliary handle for a walking assistance device has a tube seat and a handgrip tube. The tube seat utilizes the positioning space for accepting a crutch tube. When a user holds the handle portion of the handgrip tube and turns it downward; when the handgrip tube is turned, the positioning protrusion of the connecting portion moves from the stopping portion to the positioning portion and compresses the elastic member. When the handgrip tube is horizontal, the positioning protrusion passes over the stopping edge and be inserts into the positioning portion for positioning to lock the handgrip tube and prevent the elastic member from rebounding. Meanwhile, the user holds a top grip on the top of the walking assistance device with one hand, and holds the handgrip tube with the other hand, and then applies force to support the body to get up and stand.
    Type: Application
    Filed: September 29, 2020
    Publication date: April 1, 2021
    Inventor: Shih-Chieh Liu
  • Publication number: 20200323319
    Abstract: A walking stick may include a tube body, a first telescopic tube, a second telescopic tube, and a third telescopic tube. The tube body is a hollow tube, and at least a positioning hole is formed thereon, and a top end and a bottom end of the tube body respectively connect to a handle and a locating sleeve. The first telescopic tube upwardly inserted into the tube body comprises a first locating piece. Also, the second telescopic tube upwardly inserted into the first telescopic tube has a second locating piece while the third telescopic tube upwardly inserted into the second telescopic tube comprises a third locating piece. A user only needs to press the first locating piece when the walking stick needs to be retracted, and the second telescopic tube and the third telescopic tube are sequentially retracted, which is convenient for operation.
    Type: Application
    Filed: April 15, 2019
    Publication date: October 15, 2020
    Applicant: HOMECARE ENTERPRISE CO., LTD.
    Inventor: Shih-Chieh Liu
  • Patent number: 10688011
    Abstract: A foldable walker has a connecting rod, two flipping members and two side frames. When the walker is folded, the knob is of the flipping member is rotated to achieve the positioning and disengagement state of the limiting shaft, and the folding/unfolding operation is simple and convenient which greatly improves the practicability of the structure.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: June 23, 2020
    Assignee: HOMECARE ENTERPRISE CO., LTD.
    Inventor: Shih Chieh Liu
  • Publication number: 20200179214
    Abstract: A foldable walker has a connecting rod, two flipping members and two side frames. When the walker is folded, the knob is of the flipping member is rotated to achieve the positioning and disengagement state of the limiting shaft, and the folding/unfolding operation is simple and convenient which greatly improves the practicability of the structure.
    Type: Application
    Filed: December 5, 2018
    Publication date: June 11, 2020
    Inventor: Shih Chieh Liu
  • Publication number: 20190247263
    Abstract: A crutch may include a tube body, a first round bar, and a second round bar. The tube body has a main channel and a second channel which are axially and separately formed inside the tube body in parallel. A plurality of first locating holes and a plurality of second locating holes are respectively formed on peripheries of the main channel and the second channel, and a bottom cap disposed on a first end of the tube body is configured to block the main channel. Also, the bottom cap has a second opening formed at a position corresponding to the second channel. A top cap disposed on a second end of the tube body is adapted to block the second channel, and a main opening is formed on the top cap at a position corresponding to the main channel. Moreover, a handle is laterally extended from the top cap.
    Type: Application
    Filed: February 1, 2019
    Publication date: August 15, 2019
    Applicant: HOMECARE ENTERPRISE CO., LTD.
    Inventor: Shih- Chieh Liu
  • Patent number: 9974367
    Abstract: A base for a walking stick, which is configured to dispose in a bottom end of a stick body of the walking stick to provide a buffering and shock-absorbing effect, may include a main body, a shaft, a first sleeve, and a second sleeve. An upper portion and a lower portion of the shaft respectively have a first connecting portion and a second connecting portion. Also, a buffering unit disposed on the first connecting portion can allow the second sleeve to be compressed and stretched. Thus, the walking stick can achieve the stretch motion stably, and buffer the reactive force from the floor. Thus, the base structure for a walking stick can allow the stick body to swing in all direction. Also, it can be used to stand on different tilted grounds, and improve the reliability and safety of the walking stick.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: May 22, 2018
    Assignee: Homecare Enterprise Co. Ltd.
    Inventor: Shih-Chieh Liu
  • Publication number: 20170208910
    Abstract: A base for a walking stick, which is configured to dispose in a bottom end of a stick body of the walking stick to provide a buffering and shock-absorbing effect, may include a main body, a shaft, a first sleeve, and a second sleeve. An upper portion and a lower portion of the shaft respectively have a first connecting portion and a second connecting portion. Also, a buffering unit disposed on the first connecting portion can allow the second sleeve to be compressed and stretched. Thus, the walking stick can achieve the stretch motion stably, and buffer the reactive force from the floor. Thus, the base structure for a walking stick can allow the stick body to swing in all direction. Also, it can be used to stand on different tilted grounds, and improve the reliability and safety of the walking stick.
    Type: Application
    Filed: January 22, 2016
    Publication date: July 27, 2017
    Applicant: HOMECARE ENTERPRISE CO., LTD.
    Inventor: Shih-Chieh Liu
  • Publication number: 20170001290
    Abstract: A connecting rod device for tools contains: a body, a retainer, and a slidable sleeve. The body includes a polygonal fitting groove and a trench communicating with the fitting groove. The retainer is partially accommodated in the trench and includes a first face and a second face which correspond to the trench, the retainer also includes a locking protrusion extending into the fitting groove from a first end of the retainer, and a second end of the retainer extends out of the body. The slidable sleeve is fitted with the body and includes a first stop rim for pushing the first face of the retainer, and the slidable sleeve also includes a pushing element for pushing the second face of the retainer, such that the first stop rim and the pushing element of the slidable sleeve push the retainer to move in the trench.
    Type: Application
    Filed: February 22, 2016
    Publication date: January 5, 2017
    Inventor: Shih-Chieh Liu
  • Publication number: 20160332283
    Abstract: A socket wrench includes a wrench body, a ratchet wheel and a positioning ring. The ratchet wheel has a driving hole and a cylindrical flange extending on one side of the wrench body. The cylindrical flange has at least one aperture defined through the outer periphery thereof and communicating with the driving hole. The positioning ring is an O-shaped ring and surrounded the outer periphery of the cylindrical flange, and has a central bore. At least one protrusion radially protruded from the inner wall of the central bore of the positioning ring. The protrusion is projected from the wall of the driving hole through the aperture to position a socket. The positioning ring is moved a distance along the radial direction relative to the ratchet wheel by being pushed toward the at least one protrusion to completely retract the at least one protrusion into the aperture to release the socket.
    Type: Application
    Filed: July 29, 2016
    Publication date: November 17, 2016
    Inventor: Shih-Chieh Liu
  • Patent number: 9152197
    Abstract: An overcurrent protection circuit and a server using the same are provided. The overcurrent protection circuit coupled between a power supply module and a load on a mainboard including a detecting component, a detection unit, a comparing unit, and a power switch. The detecting component is coupled between the power supply module and the detection unit. The detection unit detects a detecting voltage generated by the detecting component responsive to a supplying current. The comparing unit generates a control voltage according to the detecting voltage and a reference voltage. The power switch is coupled between the detecting component and the load and is controlled by the control voltage. When the comparing unit determines that the detecting voltage is greater than the reference voltage, the comparing unit cuts off the power switch to disconnect a power supply path between the power supply module and the load.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: October 6, 2015
    Assignee: WISTRON CORP.
    Inventor: Shih-Chieh Liu
  • Publication number: 20150266173
    Abstract: A socket wrench includes a wrench body, a ratchet wheel and a positioning ring. The ratchet wheel has a driving hole and a cylindrical flange extending on one side of the wrench body. The cylindrical flange defines in an outer periphery at least one aperture communicating with the driving hole. The positioning ring is mounted around the cylindrical flange, and has a central bore and at least one protrusion radially protruded from an wall of the central bore of the positioning ring. The protrusion is projected from a wall of the driving hole through the aperture to position a socket.
    Type: Application
    Filed: March 19, 2014
    Publication date: September 24, 2015
    Inventor: Shih-Chieh Liu
  • Publication number: 20150026486
    Abstract: An overcurrent protection circuit and a server using the same are provided. The overcurrent protection circuit coupled between a power supply module and a load on a mainboard including a detecting component, a detection unit, a comparing unit, and a power switch. The detecting component is coupled between the power supply module and the detection unit. The detection unit detects a detecting voltage generated by the detecting component responsive to a supplying current. The comparing unit generates a control voltage according to the detecting voltage and a reference voltage. The power switch is coupled between the detecting component and the load and is controlled by the control voltage. When the comparing unit determines that the detecting voltage is greater than the reference voltage, the comparing unit cuts off the power switch to disconnect a power supply path between the power supply module and the load.
    Type: Application
    Filed: February 19, 2014
    Publication date: January 22, 2015
    Applicant: WISTRON CORP.
    Inventor: SHIH-CHIEH LIU
  • Publication number: 20070067513
    Abstract: In a method for a control device to command another control device, the first control device writes commands to a predetermined area in a storage unit, and the second control device reads the commands from the predetermined area and executes therewith. Therefore, the complexity of the control devices is simplified and the burden of the control devices designer is reduced.
    Type: Application
    Filed: September 19, 2006
    Publication date: March 22, 2007
    Inventors: Shih-Chieh Liu, Chia-Hsin Chen