Patents by Inventor Cheng-Fan Yang

Cheng-Fan Yang 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: 6478328
    Abstract: A locking device for collapsable stroller is located at the gripping portion of handle. The locking device comprises a housing, a pair of meshed gear members in the housing pivotal in two different opposite directions, a push button engaged with gear members, and a pair of steel cables coupled to the gear members. Whereby, pressing a push button pulls steel cables toward the center of gripping portion, thereby unlocking the latches so as to unfold the stroller thereafter. The stroller further comprises a safety mechanism at the upper side of one gear member. Safety mechanism comprises a pawl-like member caught by the gear member in the locked state of the stroller, thus preventing latches from accidentally being unlocked.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: November 12, 2002
    Assignee: Link Treasure Ltd.
    Inventors: Chuan-Ming Yeh, Cheng-Fan Yang
  • Patent number: 6442797
    Abstract: A flexible transmission device utilizes two flexible cables or ropes to pass through a narrow passage and connect two operating elements. An extendable mechanism is an intermediate of the two flexible elements. The extendable mechanism includes two tubes co-axially linked to each other. The two flexible elements overlap in the extendable mechanism in a free moving condition, which allows the relative distance between the two operating elements changing. When a flexible element is pulled from an operating member, a slider connected between the two flexible elements will be biased to fasten the two flexible elements so that the drag force can be transmitted to the second operating member.
    Type: Grant
    Filed: November 7, 2000
    Date of Patent: September 3, 2002
    Assignee: Link Treasure Limited
    Inventors: Cheng-Fan Yang, Chuan-Ming Yeh, Mao-Shen Chen
  • Publication number: 20020056973
    Abstract: A support structure for car safety seat for installing on an extensible and retractable stroller which includes a front frame, a rear frame, a handle grip and a support frame. The support structure includes a first and a second support member mounted on the support frame for supporting the weight of a car safety seat. The first support member is stationary. The second support member has two ends engaged respectively with a first and second rotary disks which are turnable about same axis which maintains a fixed distance with the first support member. Turning the second support member may change the relative distance between the first and second support member thereby to support car safety seat of different sizes.
    Type: Application
    Filed: March 15, 2001
    Publication date: May 16, 2002
    Inventors: Cheng-Fan Yang, Lung-Yin Lin
  • Patent number: 6368006
    Abstract: A baby stroller having a switchable handle, a tray accessory, and an attachment device for attaching the tray accessory to the handle.
    Type: Grant
    Filed: March 13, 2000
    Date of Patent: April 9, 2002
    Assignee: Link Treasure Limited
    Inventors: Cheng-Fan Yang, Yung-Fu Yu
  • Patent number: 6341672
    Abstract: The present invention relates to a braking device for a stroller which provides the braking function on both rear wheels synchronously. The present invention utilizes a pedal which can swing left and right to carry a rotary cam mechanism. Then the pedal will convert the swinging motion to a linear back and forth motion on the left and right braking rods. To step on the pedal is to control the motion of left and right braking rods. The left and right braking rods will be carried by the pedal to brake or release these two wheels. The pedal further has a holding mechanism for keeping the pedal in a braked or released position.
    Type: Grant
    Filed: March 4, 2000
    Date of Patent: January 29, 2002
    Assignee: Link Treasure Limited
    Inventors: Cheng-Fan Yang, Ya-Wen Hsiu
  • Patent number: 6334652
    Abstract: A seat is configured to comprise a plurality of notches on the arm of seat portion and two shaped shrouds of backrest each covered on the arm. Whereby raising the shrouds will cause the shrouds to disengage from the notches so as to freely move above along the notches and release of the shrouds will cause the shrouds to move downward to engage with the notches. By utilizing this, an angle adjustment of backrest with respect to seat portion is effected.
    Type: Grant
    Filed: August 17, 2000
    Date of Patent: January 1, 2002
    Assignee: Link Treasure Limited
    Inventors: Er-Jui Chen, Ling-Chuan Chang, Cheng-Fan Yang
  • Patent number: 6298949
    Abstract: A safety brake device for a stroller is disclosed. The brake device will automatically preclude the movement of the stroller when the user releases the brake handle. The brake handle is movably mounted to the stroller for being pushed down during manual propulsion of the stroller. A pulling wire connects to the brake handle for operating a brake assembly incorporating with the wheels. The brake handle is movable between a first and a second positions. In the first position without being handled by the user, the brake assembly precludes the rotation of the wheels. In the second position where the brake handle is pushed down by the user, the pulling wire actuates the brake assembly to release the brake and enables rotation of the wheels. When the user leaves the stroller, the brake handle retrieves to the first position, then the wheels are braked and precluded from rotation.
    Type: Grant
    Filed: August 16, 1999
    Date of Patent: October 9, 2001
    Assignee: Link Treasure Ltd.
    Inventors: Cheng-Fan Yang, Kuang-Neng Cheng
  • Patent number: 6267404
    Abstract: A detachable arm for a baby stroller comprises a left and a right sub-arms releasably attached to a left and a right sub-frames respectively by a respective engaging member, and an attaching member for releasably attaching left and right sub-arms together wherein left and right sub-arms are attached to form a complete arm in an operating position, and left and right sub-arms are separated each other and rotate downwardly a predetermined angle with respect to sub-frames when the attaching member is separated from one of the sub-arms, or alternatively left and right sub-arms are separated from sub-frames when the engaging member are separated from sub-frames in a non-operating position.
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: July 31, 2001
    Assignee: Link Treasure Limited
    Inventors: Cheng-Fan Yang, Ya-Wen Hsiu
  • Patent number: 6260867
    Abstract: The present invention relates to a child walker, which utilizes a circular base member and a specially designed moving device to provide the functions of tipping preventing and auto-braking. By these designs, the child walker can prevent from tipping when it passes over an edge of a floor or vicinity of stair steps and control the speed of the child walker. The moving device is connected to the bottom of the circular base member for supporting the circular base member, wherein the moving device further comprises un-directional rollers for moving to an uncertain direction, directional rollers for moving to a certain direction but with a little deviation in angle from the forward direction and a stopping means for prevent the child walker from tipping when any roller is passing over an edge of a floor and then inclining by the friction between the bottom of the circular base member and the surface of the floor.
    Type: Grant
    Filed: July 7, 1999
    Date of Patent: July 17, 2001
    Assignee: Link Treasure Limited
    Inventors: Cheng-Fan Yang, Kuang-Neng Cheng
  • Patent number: 6237996
    Abstract: A detachable seat comprises a movable curve member capable of being in a first position when curve member is extended away from the seat to serve as footrest or a second position when curve member is beneath seat such that curve member and seat together are supported on the ground to serve as an independent chair.
    Type: Grant
    Filed: August 17, 2000
    Date of Patent: May 29, 2001
    Assignee: Link Treasure Limited
    Inventors: Er-Jui Chen, Ling-Chuan Chang, Cheng-Fan Yang
  • Patent number: 6174028
    Abstract: The present invention is an infant rocking chair, which can be adapted for young children and provide either the rocking or swing motion. The present invention comprises a collapsible device that can cause the state of infant rocking chair to be converted into either a folded state or an unfolded one, by which the user can convert the infant rocking chair into the collapsible state when the infant rocking chair is not used and reduce the space occupied by the same for a convenient storage. Moreover, the infant rocking chair according to the present invention further comprises a support leg for converting the state of the rocking chair into a swing position or a fixed position.
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: January 16, 2001
    Assignee: Link Treasure Limited
    Inventors: Cheng-Fan Yang, Kung-Neng Chang
  • Patent number: D450633
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: November 20, 2001
    Assignee: Link Treasure Limited
    Inventors: Cheng-Fan Yang, Lung-Yin Lin, Youn-Fu You
  • Patent number: D451689
    Type: Grant
    Filed: August 17, 2000
    Date of Patent: December 11, 2001
    Assignee: Link Treasure Limited
    Inventors: Er-Jui Chen, Ling-Chuan Chang, Cheng-Fan Yang
  • Patent number: D452665
    Type: Grant
    Filed: March 13, 2000
    Date of Patent: January 1, 2002
    Assignee: Link Treasure Limited
    Inventors: Chuan-Ming Yeh, Cheng-Fan Yang, Youn-Fu You
  • Patent number: D452809
    Type: Grant
    Filed: September 22, 2000
    Date of Patent: January 8, 2002
    Assignee: Link Treasure Limited
    Inventors: Cheng-Fan Yang, Ya-Wen Shu
  • Patent number: D463329
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: September 24, 2002
    Assignee: Link Treasure Limited
    Inventors: Cheng-Fan Yang, Lung-Yin Lin, Youn-Fu You
  • Patent number: D463330
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: September 24, 2002
    Assignee: Link Treasure Limited
    Inventors: Cheng-Fan Yang, Ming-Sheng Huang
  • Patent number: D463760
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: October 1, 2002
    Assignee: Link Treasure Limited
    Inventors: Cheng-Fan Yang, Ming-Sheng Huang
  • Patent number: D464607
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: October 22, 2002
    Assignees: Link Treasure Limited, Innova Rubber Co., Ltd.
    Inventors: Yu-Ren Liu, Cheng-Fan Yang
  • Patent number: D464608
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: October 22, 2002
    Assignees: Link Treasure Limited, Innova Rubber Co., Ltd.
    Inventors: Yu-Ren Liu, Cheng-Fan Yang