Patents by Inventor Tser-Wen Chou

Tser-Wen Chou 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: 20240068297
    Abstract: A peak cover for lift cord and tilt ladder includes a limiter having an arcuate cover. A fixed engagement plate is disposed at an upper end of a left side of the arcuate cover. Two stop walls are disposed on two sides of a lower end of the left side of the arcuate cover. Two grooves are formed inside the stop walls. Two annular ribs of a cord winding reel are engaged in the grooves, whereby the cord winding reel is freely rotatable. A movable engagement plate is disposed at an upper end of a right side of the arcuate cover. Four raised columns are formed on an upper end of the arcuate cover. The arcuate cover of the limiter is capped on the cord winding reel. The fixed engagement plate and the movable engagement plate of the arcuate cover are engaged with the annular ribs on two sides of the cord winding reel.
    Type: Application
    Filed: August 30, 2022
    Publication date: February 29, 2024
    Inventor: Tser Wen CHOU
  • Publication number: 20240018828
    Abstract: An apparatus for ensuring evenness and smoothness in the operations of a roller shutter or window blind is provided. The apparatus synchronizes the torque applied across the length of the roller. The apparatus also enhances the rigidity of the roller tube without significantly increasing the cost and the weight of the roller shutter. The apparatus may include an outer tube, a rotation power source, an inner shaft, and a rotation synchronizer. The inner shaft is disposed within the outer tube. The rotation synchronizer is installed at the inner shaft to rotationally couple the inner shaft with the outer tube. A rotation power source is installed at one end of the outer tube or the inner shaft to provide power to rotate the inner shaft and the outer tube. The outer tube may be for winding the screen of a roller shutter, or a lifting or tilting cord of a horizontal blind.
    Type: Application
    Filed: September 6, 2022
    Publication date: January 18, 2024
    Inventors: Tser Wen Chou, Mason Chou
  • Publication number: 20230323732
    Abstract: A safety cord tilter, in which two cords of the cord tilter for controlling opening or closing of the blind slats are exposed outside the headrail by a length set within a safety length range. The rear ends of the two cords are respectively connected with a first pull rod and a second pull rod for pulling the cords. When the first and second pull rods are used to control opening or closing of the blind slats, the first pull rod or the second pull rod reaches the blind rail at the top end, whereby the allowable exposed lengths of the pulled-out cords will not exceed the safety range so as to shorten the exposed length of the cords. This prevents a child from playing with the cords and twisting the cords around the neck and achieves safety effect.
    Type: Application
    Filed: April 27, 2022
    Publication date: October 12, 2023
    Inventor: Tser Wen CHOU
  • Publication number: 20230119373
    Abstract: A mounting system for window blinds is provided. The mounting system provides components that can be used to mount a window blind or shade. The components of the mounting system include support brackets, mounting clips, railing devices, adjustable arms, spacers, etc. These components can be provided in different combinations to mount different types of blinds or shades to walls or ceilings, regardless of whether the wall to be mounted to is above, behind, or to the sides of the window blind.
    Type: Application
    Filed: January 14, 2022
    Publication date: April 20, 2023
    Inventors: Tser Wen Chou, Mason Chou
  • Publication number: 20230119716
    Abstract: A mounting system for window blinds is provided. The mounting system provides components that can be used to mount a window blind or shade. The components of the mounting system include flex brackets, mounting clips, railing devices, adjustable arms, spacers, etc. These components can be provided in different combinations to mount different types of blinds or shades to walls or ceilings, regardless of whether the wall to be mounted to is above, behind, or to the sides of the window blind.
    Type: Application
    Filed: March 4, 2022
    Publication date: April 20, 2023
    Inventors: Tser Wen Chou, Mason Chou
  • Publication number: 20230063464
    Abstract: A blind pull cord connector has a cord passage section and a connection section. The cord passage section has more than one cord passage bodies, each of which is formed with a through hole. An inner face of each cord passage body is formed with a cut face. The connection section is passed through a punched hole of rear side of a blind slat, whereby the cord passage section is positioned on outer side of the slat. When the slat is horizontally opened or vertically closed, the connector structure is limited by the slat so that the connector is connected with the blind slat and naturally kept horizontal. In this case, a pull cord can be easily and quickly passed through the through holes of the cord passage bodies, whereby the frictional resistance against the pulling of the pull cord is reduced and the slats can be more tightly closed. In addition, by means of the restriction of the cord passage bodies of the cord passage section, a ladder cord and the pull cord are located.
    Type: Application
    Filed: October 7, 2021
    Publication date: March 2, 2023
    Inventor: Tser Wen CHOU
  • Patent number: 11591851
    Abstract: A free hanging safety bead chain tension device includes a clutch, a bead chain for controlling ascending/descending of a roller shade, a tension rod and more than one restriction seats. The bead chain is connected with the tension rod and the restriction seats are disposed on the rod body of the tension rod. Each restriction seat has one or more restriction tunnels for locating the bead chain adjacent to the tension rod. When pulling the bead chain to control the ascending/descending of the roller shade, the bead chain is positioned by the tension rod and the restriction seats. Accordingly, not only the bead chain can be still smoothly pulled, but also the bead chain is prevented from being pulled out by a space sufficient to twist around a neck. Therefore, a child is prevented from pulling the bead chain to twist the bead chain around the child's neck so that a safety effect is achieved.
    Type: Grant
    Filed: June 16, 2022
    Date of Patent: February 28, 2023
    Inventors: Tser Wen Chou, Mason Chou
  • Publication number: 20220396999
    Abstract: An apparatus for controlling tilting and lifting operation of a window blind is provided. The apparatus includes a tilting control shaft and a lifting control shaft. A ladder belt is fastened to the tilting control shaft and interconnects the slats of the window blind, such that rotating the tilting control shaft tilts the slats. Multiple lifting cords are fastened to the lifting control shaft and connected to the blind bottom of the window blind, such that rotating the lifting control shaft lifts or lowers the blind bottom and one or more slats.
    Type: Application
    Filed: June 1, 2022
    Publication date: December 15, 2022
    Inventors: Tser Wen Chou, Mason Chou
  • Patent number: 10988980
    Abstract: A blind cord guide seat includes a connection seat fixed under a blind rail and a cord restriction seat connected under the connection seat. The cord restriction seat includes a fixing section and a latch section. An outer face of each of the fixing section and the latch section is formed with a belt guide channel. The top end of the fixing section is formed with threaded holes for connecting with the connection seat by screws. When assembled with a cord winding device, an external force is applied to the latch section to outward bias the latch section to provide an opening for placing the cord winding device through the opening into the cord restriction seat. An iron-made hook bracket and a latch body are securely disposed at the upper end of the latch section for securely latching the latch section with the connection seat.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: April 27, 2021
    Inventor: Tser Wen Chou
  • Patent number: D899810
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: October 27, 2020
    Inventor: Tser Wen Chou
  • Patent number: D933394
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: October 19, 2021
    Inventor: Tser Wen Chou
  • Patent number: D933999
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: October 26, 2021
    Inventor: Tser Wen Chou
  • Patent number: D935222
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: November 9, 2021
    Inventor: Tser Wen Chou
  • Patent number: D939858
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: January 4, 2022
    Inventor: Tser Wen Chou
  • Patent number: D939937
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: January 4, 2022
    Inventor: Tser Wen Chou
  • Patent number: D953155
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: May 31, 2022
    Inventor: Tser Wen Chou
  • Patent number: D991699
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: July 11, 2023
    Inventor: Tser Wen Chou
  • Patent number: D991700
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: July 11, 2023
    Inventor: Tser Wen Chou
  • Patent number: D1014130
    Type: Grant
    Filed: July 30, 2022
    Date of Patent: February 13, 2024
    Inventor: Tser Wen Chou
  • Patent number: D1017690
    Type: Grant
    Filed: May 13, 2022
    Date of Patent: March 12, 2024
    Inventors: Tser Wen Chou, Mason Chou