Patents by Inventor Chung-Hsiu Su

Chung-Hsiu Su 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: 11890244
    Abstract: A wheeled nursing and medical device includes a wheeled seat mechanism, a driving module, a bed mechanism and a linking mechanism. The wheeled seat mechanism includes an expandable base frame and front and rear wheel assemblies. The driving module is operable to drive expanding and retraction of the expandable base frame. The bed mechanism includes a main bed plate and a backrest plate pivotally connected with the main bed plate. The linking mechanism includes at least one inclined bracket pivotally connected with the expandable base frame and the backrest plate. The device is shiftable between a bed state and a wheelchair state to render traveling of the device in the wheelchair state convenient.
    Type: Grant
    Filed: March 18, 2022
    Date of Patent: February 6, 2024
    Inventor: Chung-Hsiu Su
  • Publication number: 20230406381
    Abstract: A foldable trolley includes a frame body unit and two wheel units. The frame body unit includes a lower frame structure and am upper frame structure. The upper frame structure includes a sliding rod slidably disposed on the lower frame structure. The upper frame structure is slidable in a direction toward a bottom of the lower frame structure, via sliding connection of the sliding rod and the lower frame structure, and fold on the lower frame structure, so as to convert the frame body unit from an unfolded state to a folded state. The wheel units are disposed respectively on two sides of the lower frame structure, and are operable to pivot toward the lower frame structure.
    Type: Application
    Filed: June 21, 2022
    Publication date: December 21, 2023
    Inventor: Chung-Hsiu SU
  • Patent number: 11794520
    Abstract: A conductive caster wheel is adapted to be mounted on a cart. The conductive caster wheel includes a caster hub adapted to be sleeved on a bearing of the cart, a wheel body sleeved on the caster hub, and a conductive plate disposed inside the caster hub and the wheel body. The conductive plate has an inner conductive section and an outer conductive section. The inner conductive section is exposed from an inner surrounding surface of the caster hub, and is adapted to be electrically connected to the bearing. The outer conductive section is electrically connected to the inner conductive section, is exposed from an outer surrounding surface of the wheel body, and is adapted to be in contact with a ground surface.
    Type: Grant
    Filed: December 21, 2021
    Date of Patent: October 24, 2023
    Inventor: Chung-Hsiu Su
  • Publication number: 20230293371
    Abstract: A wheeled nursing and medical device includes a wheeled seat mechanism, a driving module, a bed mechanism and a linking mechanism. The wheeled seat mechanism includes an expandable base frame and front and rear wheel assemblies. The driving module is operable to drive expanding and retraction of the expandable base frame. The bed mechanism includes a main bed plate and a backrest plate pivotally connected with the main bed plate. The linking mechanism includes at least one inclined bracket pivotally connected with the expandable base frame and the backrest plate. The device is shiftable between a bed state and a wheelchair state to render traveling of the device in the wheelchair state convenient.
    Type: Application
    Filed: March 18, 2022
    Publication date: September 21, 2023
    Inventor: Chung-Hsiu SU
  • Patent number: 11554800
    Abstract: A hand truck includes a cart base for carrying an article and two handle modules pivotally mounted thereto. When the hand truck is in a first state, the cart base is horizontally positioned and one handle module is pivoted to an upright position. When the hand truck is in a second state, the cart base is kept upright, one of the handle modules is pivoted to a spread position, and the other one of the handle modules is horizontally positioned and cooperates with the cart base to carry the article. When the hand truck is in a platform state, the cart base is horizontally positioned, and the handle modules are pivoted to a downward extending position so that the cart base is away from the ground.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: January 17, 2023
    Inventor: Chung-Hsiu Su
  • Publication number: 20220203764
    Abstract: A conductive caster wheel is adapted to be mounted on a cart The conductive caster wheel includes a caster hub adapted to be sleeved on a bearing of the cart, a wheel body sleeved on the caster hub, and a conductive plate disposed inside the caster hub and the wheel body. The conductive plate has an inner conductive section. and an outer conductive section. The inner conductive section is exposed from an inner surrounding surface of the caster hub, and is adapted to be electrically connected. to the bearing. The outer conductive section is electrically connected to the inner conductive section, is exposed from an outer surrounding surface of the wheel body, and is adapted to be in contact with a ground surface.
    Type: Application
    Filed: December 21, 2021
    Publication date: June 30, 2022
    Inventor: Chung-Hsiu SU
  • Publication number: 20200307665
    Abstract: A hand truck includes a cart base for carrying an article and two handle modules pivotally mounted thereto. When the hand truck is in a first state, the cart base is horizontally positioned and one handle module is pivoted to an upright position. When the hand truck is in a second state, the cart base is kept upright, one of the handle modules is pivoted to a spread position, and the other one of the handle modules is horizontally positioned and cooperates with the cart base to carry the article. When the hand truck is in a platform state, the cart base is horizontally positioned, and the handle modules are pivoted to a downward extending position so that the cart base is away from the ground.
    Type: Application
    Filed: August 16, 2019
    Publication date: October 1, 2020
    Inventor: Chung-Hsiu SU
  • Patent number: 10525997
    Abstract: A hand truck includes a main frame mechanism and a clamping mechanism. The main frame mechanism includes a main frame unit configured to carry an article, and a wheel unit connected to the main frame unit for moving the main frame unit. The clamping mechanism includes two clamping frame units disposed movably and respectively on left and right sides of the main frame unit. The clamping frame units are driven to move relative to the main frame unit between a clamped state and an unclamped state, in which the clamping frame units are moved close to and away from each other to clamp and release therebetween the article, respectively.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: January 7, 2020
    Inventor: Chung-Hsiu Su
  • Patent number: 9810571
    Abstract: A hand truck includes a truck frame, a toe plate coupled with the truck frame and having a loading surface which is disposed to extend forwardly of and transverse to the truck frame for carrying objects thereon, and a load measuring assembly disposed on the truck frame adjacent to the toe plate and spaced apart from the loading surface to measure weight of the objects set on the loading surface. The load measuring assembly includes a force measuring unit disposed on the truck frame to receive and measure an upward force, and a force transferring unit interconnecting the toe plate and the force measuring unit to transfer the weight of the objects as the upward force to the force measuring unit.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: November 7, 2017
    Inventor: Chung-Hsiu Su
  • Patent number: 9688298
    Abstract: A convertible hand truck includes first and second truck frames coupled with each other through a pair of fixed members and a pair of pivoting members such that the second truck frame is turnable relative to the first truck frame among a folded position, a platform-cart position and a reclined-truck position. A stabilizing lever is pivotably connected with the second truck frame or the pivoting members to be engaged with or disengaged from the fixed members in response to the turning of the second truck frame. The second truck frame extends outwardly from the first truck frame in the reclined-truck position so as to expand and enlarge the carrying area of the hand truck for more loads.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: June 27, 2017
    Inventor: Chung-Hsiu Su
  • Patent number: 9199655
    Abstract: A foldable cart includes a frame mechanism and a control mechanism. The control mechanism can drive the frame mechanism to be in a collapsed state or an expanded state.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: December 1, 2015
    Inventor: Chung-Hsiu Su
  • Patent number: 9150233
    Abstract: A foldable cart includes a frame mechanism, a wheeled rear support mechanism and two spaced-apart handle units. The frame mechanism can be in a collapsed state or an expanded state. The wheeled rear support mechanism is mounted pivotally to a rear side of a main frame body of the frame mechanism and movable between a supporting position and a fully folded position with respect to the main frame body. The handle units are rotatably connected to the main frame body to drive the frame mechanism to be in the collapsed state or the expanded state.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: October 6, 2015
    Inventor: Chung-Hsiu Su
  • Publication number: 20150137487
    Abstract: A foldable cart includes a frame mechanism, a wheeled rear support mechanism and two spaced-apart handle units. The frame mechanism can be in a collapsed state or an expanded state. The wheeled rear support mechanism is mounted pivotally to a rear side of a main frame body of the frame mechanism and movable between a supporting position and a fully folded position with respect to the main frame body. The handle units are rotatably connected to the main frame body to drive the frame mechanism to be in the collapsed state or the expanded state.
    Type: Application
    Filed: November 3, 2014
    Publication date: May 21, 2015
    Inventor: Chung-Hsiu SU
  • Patent number: 8505728
    Abstract: A portable tool storing device includes first and second modular shelves configured to be brought into fitting engagement with each other in an upright direction by a back-to-back engagement manner so as to permit crosspieces to be juxtaposed to and combined with each other to form a handle for carrying. Each shelf includes a plurality of flank segments, each having an indented region. A modular container has a clip lug disposed to be clipped on the indented region to detachably hold the container on the flank segment so as to provide easy access to a tool in the container body.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: August 13, 2013
    Inventor: Chung-Hsiu Su
  • Publication number: 20130056378
    Abstract: A portable tool storing device includes first and second modular shelves configured to be brought into fitting engagement with each other in an upright direction by a back-to-back engagement manner so as to permit crosspieces to be juxtaposed to and combined with each other to form a handle for carrying. Each shelf includes a plurality of flank segments, each having an indented region. A modular container has a clip lug disposed to be clipped on the indented region to detachably hold the container on the flank segment so as to provide easy access to a tool in the container body.
    Type: Application
    Filed: September 1, 2011
    Publication date: March 7, 2013
    Inventor: Chung-Hsiu SU
  • Publication number: 20060053725
    Abstract: A rectangular base body of a load support of a carrier has an adjacent pair of first lateral sides, and an adjacent pair of second lateral sides respectively connected to the first lateral sides. Each first lateral side is formed with inwardly extending first dovetail recesses spaced apart from each other, and first male dovetail portions, each of which is defined by an adjacent pair of the first dovetail recesses. Each second lateral side is formed with second male dovetail portions spaced apart from each other, shaped to correspond with the first dovetail recesses, and disposed on the second lateral sides at locations corresponding to those of the first dovetail recesses in the first lateral sides, and second dovetail recesses, each of which is defined by an adjacent pair of the second male dovetail portions, disposed at locations corresponding to those of the first male dovetail portions.
    Type: Application
    Filed: September 2, 2004
    Publication date: March 16, 2006
    Inventor: Chung-Hsiu Su
  • Publication number: 20050280223
    Abstract: A sled includes an elongated board having opposite front and rear ends, a stand disposed adjacent to the front end of the board, standing upright therefrom, and having a top end, a handle connected to the top end of the stand, and a braking mechanism including an operating unit mounted movably on the handle, a connecting unit connected to the operating unit, and a braking unit disposed adjacent to the rear end of the board and pivotable relative to the board from a non-braking position to a braking position, in which the braking unit is in frictional contact with the ground. The braking unit is connected to the connecting unit so as to be actuated to move to the braking position when the operating unit is operated.
    Type: Application
    Filed: June 18, 2004
    Publication date: December 22, 2005
    Inventor: Chung-Hsiu Su