Patents by Inventor Wen-Qu Hu

Wen-Qu Hu 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: 20090250977
    Abstract: A folding device is configured at the pivot between the rear leg frame and the front leg frame of a high chair and allows a user to complete folding process by pressing a driving member. When the driving member is pressed, an engaging member of the folding device moves correspondingly to an unlocked position, so that the rear leg frame disengages from and pivots about the front leg frame. The high chair can then be folded easily for the user, and the structure of the invention is simpler than the prior art.
    Type: Application
    Filed: April 2, 2009
    Publication date: October 8, 2009
    Inventors: Wen-Qu Hu, Shun-Min Chen
  • Patent number: 7571966
    Abstract: A removable wheel device includes a wheel unit, a housing, and a locking unit. The wheel unit includes a wheel body and a wheel axle formed with an annular groove. The wheel axle is extendible removably into the housing. The locking unit includes an actuator connected pivotally to the housing, an elastic member mounted between an operating end portion of the actuator and the housing, and a locking pin connected to a force transmitting end portion of the actuator. The operating end portion is depressible to move the force transmitting end portion from a locking position, where the locking pin extends into the annular groove to prevent removal of the wheel axle from the housing, to an unlocking position, where the locking pin is disengaged from the annular groove to permit removal of the wheel axle from the housing.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: August 11, 2009
    Assignee: Wonderland Nurserygoods Co., Ltd.
    Inventors: Shun-Min Chen, Wen-Qu Hu
  • Publication number: 20080238016
    Abstract: A shock-absorbing device for a stroller includes: a wheel mounting seat including a sleeve part having first and second sides, and an extending part extending outwardly from the first side of the sleeve part; a shock-absorber seat having a first end portion that is formed with a wheel axle-disposing hole, and a second end portion that is pivoted to the second side of the sleeve part, the wheel axle-disposing hole being defined by an axle hole-defining wall; and a resilient shock absorber abutting resiliently against the extending part and the axle hole-defining wall.
    Type: Application
    Filed: March 28, 2008
    Publication date: October 2, 2008
    Applicant: Wonderland Nurserygoods Co., Ltd.
    Inventors: Shun-Min Chen, Wen-Qu Hu
  • Patent number: 7410185
    Abstract: A foldable stroller frame assembly includes a bottom frame unit, front and rear frame units connected pivotally to the bottom frame unit, and a handle unit pivotable relative to the front and rear frame units. The bottom frame unit includes a generally V-shaped bottom frame member adapted for mounting rotatably a pair of rear wheels thereon, and a wheel mounting frame member connected to the bottom frame member and adapted for mounting rotatably a front wheel thereon.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: August 12, 2008
    Assignee: Wonderland Nurserygoods Co., Ltd.
    Inventors: Shun-Min Chen, Wen-Qu Hu
  • Publication number: 20080042487
    Abstract: A removable wheel device includes a wheel unit, a housing, and a locking unit. The wheel unit includes a wheel body and a wheel axle formed with an annular groove. The wheel axle is extendible removably into the housing. The locking unit includes an actuator connected pivotally to the housing, an elastic member mounted between an operating end portion of the actuator and the housing, and a locking pin connected to a force transmitting end portion of the actuator. The operating end portion is depressible to move the force transmitting end portion from a locking position, where the locking pin extends into the annular groove to prevent removal of the wheel axle from the housing, to an unlocking position, where the locking pin is disengaged from the annular groove to permit removal of the wheel axle from the housing.
    Type: Application
    Filed: March 2, 2007
    Publication date: February 21, 2008
    Inventors: Shun-Min CHEN, Wen-Qu HU
  • Publication number: 20080000732
    Abstract: The present invention provides a braking mechanism comprising a brake cable set, a spring, a connector, a pair of brake shoes, a brake band, a base, and a brake drum. The brake cable set makes the connector move downwards upon braking, such that the connector coupled to the pair of brake shoes rotates to contact the brake band and thus cause friction, whereby achieving the object of braking.
    Type: Application
    Filed: November 30, 2006
    Publication date: January 3, 2008
    Applicant: Wonderland Nurserygoods Co., Ltd.
    Inventors: Shun-Min Chen, Wen Qu Hu
  • Publication number: 20070052208
    Abstract: A foldable stroller frame assembly includes a bottom frame unit, front and rear frame units connected pivotally to the bottom frame unit, and a handle unit pivotable relative to the front and rear frame units. The bottom frame unit includes a generally V-shaped bottom frame member adapted for mounting rotatably a pair of rear wheels thereon, and a wheel mounting frame member connected to the bottom frame member and adapted for mounting rotatably a front wheel thereon.
    Type: Application
    Filed: September 8, 2005
    Publication date: March 8, 2007
    Inventors: Shun-Min Chen, Wen-Qu Hu
  • Patent number: D529844
    Type: Grant
    Filed: June 20, 2005
    Date of Patent: October 10, 2006
    Assignee: Wonderland Nurserygoods Co., Ltd.
    Inventors: Shun-Min Chen, Wen-Qu Hu