Patents by Inventor Yao-Chuan Wu

Yao-Chuan 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: 20170254471
    Abstract: A supporting assembly has a supporting board and a baseboard. The baseboard is connected to and located below the supporting board and has a connection end and a folding end. The connection end is connected to the supporting board to allow the supporting board to pivot relative to the baseboard. The folding end is opposite the connection end and has multiple folding segments formed on the folding end.
    Type: Application
    Filed: March 2, 2016
    Publication date: September 7, 2017
    Inventor: Yao Chuan WU
  • Patent number: 9700143
    Abstract: An adjustable lumbar support apparatus for a seat back is disclosed and includes a lumbar support and two adjusting assemblies respectively disposed at two sides of the seat back. Each of the adjusting assemblies includes a supporting sheet disposed on an exterior surface of the seat back, an acting rod disposed in a positioning cylinder base on a front end of the seat back, and a knob disposed on a rear end of the seat back. The acting rod and the knob are co-acting, and the acting rod and the supporting sheet are corresponding to each other by the slope surface and the acting slope surface. When the knob is rotated, the corresponding relationship between the acting slope surface and the slope surface is varied. The distance between the lumbar support and the seat back can be adjusted in accordance with different requirements under different circumstances to overcome the elastic fatigue problem.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: July 11, 2017
    Inventor: Yao-Chuan Wu
  • Patent number: 9635929
    Abstract: A foldable table has a base, a lifting device, an adjusting assembly, and a supporting board. The adjusting assembly is pivotally connected with the lifting device and has an adjusting board, an adjusting rack, an adjusting slider, and a connection arm. The adjusting board is pivotally connected with the lifting device. The adjusting rack is mounted on the adjusting board and has an engaging side provided with multiple teeth. The adjusting slider is moveably mounted on the adjusting board and has an engaging block and two resilient elements. The engaging block is pivotally mounted on the adjusting slider and has an engaging post selectively engaging with one of the teeth on the adjusting rack. The supporting board is pivotally connected with the adjusting board and is pivotally connected with the top end of the connection arm.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: May 2, 2017
    Inventor: Yao-Chuan Wu
  • Patent number: 9585483
    Abstract: An adjustable head support apparatus includes a head support and an adjusting assembly disposed within the seat back of a chair. The adjusting assembly includes a positioning base, a rotating block, a moving base and a latch base. The positioning base is disposed at a rear end of the seat back and the rotating block is pivoted within the positioning base. The moving base is installed at the rear end of the positioning base to move the head support. The latch base is installed at the front end of the head support and engaged with the latch. When the head support is pulled up enough to move the moving base upward, the moving base will rotate the latch of the rotating block. Therefore, the height of the head support can be adjusted to satisfy different people and the support of the head can be provided properly.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: March 7, 2017
    Inventor: Yao-Chuan Wu
  • Publication number: 20160374463
    Abstract: A multifunctional storage device has a lower seat with a storage room, an upper mount pivotally connected to the lower seat, a bottom cover mounted on the lower seat, and an adjustable connecting assembly connecting the lower seat and the upper mount. The upper mount can cover the lower seat or can be opened to tilt relative to the lower seat and be held at a specific angle by the adjustable connecting assembly. When the multifunctional storage device is attached to a piece of furniture, the upper mount is flush with a platform of the furniture, such that articles can be placed on the upper mount and the platform of the furniture or be stored in the storage room. Accordingly, the furniture with the multifunctional storage device can have a basic function and multiple additional functions derived from the multifunctional storage device.
    Type: Application
    Filed: June 29, 2015
    Publication date: December 29, 2016
    Inventor: Yao-Chuan Wu
  • Publication number: 20160374476
    Abstract: A footrest assembly disposed under a chair includes an assembly, a tracking frame, a first rotating plate, a second rotating plate and a footrest. The tracking frame is movably mounted in the seat mounting frame. The first rotating plate is pivotally connected to the tracking frame. The second rotating plate is pivotally connected to the first rotating plate. The footrest is mounted on the second rotating plate. By disposing the two rotating plates between the footrest and the tracking frame, the footrest can rotate twice relative to the tracking frame, so as to increase a distance between the footrest and the tracking frame. That is, a distance between the footrest and the chair is increased, so as to meet users' various needs.
    Type: Application
    Filed: June 26, 2015
    Publication date: December 29, 2016
    Inventor: Yao-Chuan WU
  • Publication number: 20160374474
    Abstract: An adjustable lumbar support apparatus for a seat back is disclosed and includes a lumbar support and two adjusting assemblies respectively disposed at two sides of the seat back. Each of the adjusting assemblies includes a supporting sheet disposed on an exterior surface of the seat back, an acting rod disposed in a positioning cylinder base on a front end of the seat back, and a knob disposed on a rear end of the seat back. The acting rod and the knob are co-acting, and the acting rod and the supporting sheet are corresponding to each other by the slope surface and the acting slope surface. When the knob is rotated, the corresponding relationship between the acting slope surface and the slope surface is varied. The distance between the lumbar support and the seat back can be adjusted in accordance with different requirements under different circumstances to overcome the elastic fatigue problem.
    Type: Application
    Filed: June 29, 2015
    Publication date: December 29, 2016
    Inventor: Yao-Chuan WU
  • Publication number: 20160374473
    Abstract: An adjustable head support apparatus includes a head support and an adjusting assembly disposed within the seat back of a chair. The adjusting assembly includes a positioning base, a rotating block, a moving base and a latch base. The positioning base is disposed at a rear end of the seat back and the rotating block is pivoted within the positioning base. The moving base is installed at the rear end of the positioning base to move the head support. The latch base is installed at the front end of the head support and engaged with the latch. When the head support is pulled up enough to move the moving base upward, the moving base will rotate the latch of the rotating block. Therefore, the height of the head support can be adjusted to satisfy different people and the support of the head can be provided properly.
    Type: Application
    Filed: June 29, 2015
    Publication date: December 29, 2016
    Inventor: Yao-Chuan WU
  • Publication number: 20160374470
    Abstract: A chair has a seat member and a backrest member. The seat member has a seat body having a horizontal frame disposed horizontally; a front supporting leg mounted on a bottom surface of the horizontal frame near a front end of the horizontal frame; and two rear supporting legs mounted respectively on two sides of a bottom surface of the horizontal frame near a rear end of the horizontal frame. The backrest member has a backrest frame having two backrest sidebars mounted respectively on two sides of the horizontal frame and an upper crossbar connected between two top ends of the backrest sidebars and having a suspension slot defined in a rear surface of the upper crossbar. The suspension slot is axially elongated and has an L-shaped cross section. The chair may be used independently and may be easily combined other furniture units to form a furniture set.
    Type: Application
    Filed: June 26, 2015
    Publication date: December 29, 2016
    Inventor: Yao-Chuan WU
  • Patent number: 9526343
    Abstract: A footrest assembly disposed under a chair includes an assembly, a tracking frame, a first rotating plate, a second rotating plate and a footrest. The tracking frame is movably mounted in the seat mounting frame. The first rotating plate is pivotally connected to the tracking frame. The second rotating plate is pivotally connected to the first rotating plate. The footrest is mounted on the second rotating plate. By disposing the two rotating plates between the footrest and the tracking frame, the footrest can rotate twice relative to the tracking frame, so as to increase a distance between the footrest and the tracking frame. That is, a distance between the footrest and the chair is increased, so as to meet users' various needs.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: December 27, 2016
    Inventor: Yao-Chuan Wu
  • Publication number: 20160037930
    Abstract: The present invention relates to a unit component for a chair backrest. The component has a basic body. The basic body has a through hole, a supporting portion, and at least two connecting arms. The through hole is formed on the basic body. The supporting portion is mounted over the through hole. The at least two connecting arms are mounted at corners of the through hole and are connected with the supporting portion.
    Type: Application
    Filed: August 7, 2014
    Publication date: February 11, 2016
    Inventor: Yao-Chuan WU
  • Publication number: 20160037931
    Abstract: A modified back rack has a front frame, a supporting stand mounted movably on the front frame, and a positioning mount mounted securely on the front frame. The front frame has an adjusting base mounted on the front frame. The adjusting base has a protrusion formed on the adjusting base, a track area formed on the adjusting base, and multiple positioning grooves formed on the protrusion. The supporting stand has a movement recess formed on the supporting stand, a movement space formed in the movement recess, and a moving assembly mounted in the movement recess. The moving assembly has a moving block, a swinging arm mounted pivotally in the moving block, and a moving pin extending from the swinging arm. The moving pin is placed in the track area. The modified back rack has height adjusting function that can meet different requirements.
    Type: Application
    Filed: August 11, 2014
    Publication date: February 11, 2016
    Inventor: Yao-Chuan WU
  • Publication number: 20160037929
    Abstract: The present invention has a back supporting module, a front headrest module and an anchor plate. The back supporting module has a positioning base, a moveable base, and a positioning cover. An insertion recess is formed in a top end of the positioning base. The moveable base is mounted in the insertion recess of the positioning base. The moveable base can be moved along the positioning cover. The front headrest module has a linking plate mounted in the moveable base and a headrest board. The anchor plate is mounted on a front surface of the linking plate and is securely connected to the moveable base. The headrest board is connected securely to the linking plate. When moving the headrest board, the level position and height of the moveable base can be adjusted.
    Type: Application
    Filed: August 5, 2014
    Publication date: February 11, 2016
    Inventor: Yao-Chuan WU
  • Patent number: 9247821
    Abstract: A modified back rack has a front frame, a supporting stand mounted movably on the front frame, and a positioning mount mounted securely on the front frame. The front frame has an adjusting base mounted on the front frame. The adjusting base has a protrusion formed on the adjusting base, a track area formed on the adjusting base, and multiple positioning grooves formed on the protrusion. The supporting stand has a movement recess formed on the supporting stand, a movement space formed in the movement recess, and a moving assembly mounted in the movement recess. The moving assembly has a moving block, a swinging arm mounted pivotally in the moving block, and a moving pin extending from the swinging arm. The moving pin is placed in the track area. The modified back rack has height adjusting function that can meet different requirements.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: February 2, 2016
    Inventor: Yao-Chuan Wu
  • Publication number: 20160022047
    Abstract: A chair having a reminder function comprises a chair body, a reminder, and a sitting posture determining device, wherein the chair body has a seat and a backrest, wherein the sitting posture determining device has a seat detector, a backrest detector, and a microcontroller. The seat detector is mounted in the seat for detecting whether a user is sitting on the seat or not; the backrest detector is mounted in the backrest for detecting whether the user is leaning against the backrest; the microcontroller is electrically connected to the seat detector, the backrest detector and the reminder, and determines whether to actuate the reminder to generate a reminding notification based on the detecting result of the seat detector and the backrest detector for reminding the user to adjust the sitting posture or timely move the body.
    Type: Application
    Filed: July 22, 2014
    Publication date: January 28, 2016
    Inventor: Yao-Chuan WU
  • Patent number: D766002
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: September 13, 2016
    Inventor: Yao-Chuan Wu
  • Patent number: D766026
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: September 13, 2016
    Inventor: Yao-Chuan Wu
  • Patent number: D766027
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: September 13, 2016
    Inventor: Yao-Chuan Wu
  • Patent number: D774788
    Type: Grant
    Filed: June 27, 2015
    Date of Patent: December 27, 2016
    Inventor: Yao-Chuan Wu
  • Patent number: D782236
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: March 28, 2017
    Inventor: Yao-Chuan Wu