Patents by Inventor Ferretti Chang

Ferretti Chang 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: 7267347
    Abstract: A structural assembly for electric scooter includes a seat mount and a treadboard support. The structural assembly utilizes hook portions on a connecting plate of the treadboard support to hook onto a stud shaft below a joining plate of the seat mount, and further utilizes embed pieces with compression springs disposed therein to be configured in the connecting plate to embed within fixing holes defined in the joining plate of the seat mount, and thereby complete rapid assemblage of the scooter. Furthermore, a triangular notch is defined in a push plate, and inclined sides of the triangular notch are so configured to function in coordination with inclined edges of wedge-shaped slots formed in upper portion of embed pieces, and thus control of extension or retraction of the embed pieces is effectuated by means of sliding coordination of the inclined sides and the inclined edges.
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: September 11, 2007
    Assignee: Chien Ti Enterprise Co., Ltd.
    Inventor: Ferretti Chang
  • Patent number: 7150076
    Abstract: A handlebar fixing device of a motorized cart including a head tube formed on the upper section and a seat formed on the lower section, a connection tube formed with a shifter structure, a handlebar having a fan-shaped connection plate formed on the lower section with holes, a holder formed above the seat of the head tube, a spring formed inside the hollow of the holder, and a rod having a section extending inside the spring, a stopper formed on the lateral, and a bolt hole formed on the lower section connecting to the base of the connection tube. By pressing down the handlebar, the stopper presses the rod down to the head tube, restraining the handlebar from moving right or left. With the stopper pressing the rod and a locking rod of the shifter structure being pushed, the handlebar being prevented from moving up or down.
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: December 19, 2006
    Assignee: Chien Ti Enterprise Co., Ltd.
    Inventor: Ferretti Chang
  • Publication number: 20060075604
    Abstract: A handlebar fixing device of a motorized cart including a head tube formed on the upper section and a seat formed on the lower section, a connection tube formed with a shifter structure, a handlebar having a fan-shaped connection plate formed on the lower section with holes, a holder formed above the seat of the head tube, a spring formed inside the hollow of the holder, and a rod having a section extending inside the spring, a stopper formed on the lateral, and a bolt hole formed on the lower section connecting to the base of the connection tube. By pressing down the handlebar, the stopper presses the rod down to the head tube, restraining the handlebar from moving right or left. With the stopper pressing the rod and a locking rod of the shifter structure being pushed, the handlebar being prevented from moving up or down.
    Type: Application
    Filed: October 12, 2004
    Publication date: April 13, 2006
    Inventor: Ferretti Chang
  • Publication number: 20060076746
    Abstract: A structural assembly for electric scooter includes a seat mount and a treadboard support. The structural assembly utilizes hook portions on a connecting plate of the treadboard support to hook onto a stud shaft below a joining plate of the seat mount, and further utilizes embed pieces with compression springs disposed therein to be configured in the connecting plate to embed within fixing holes defined in the joining plate of the seat mount, and thereby complete rapid assemblage of the scooter. Furthermore, a triangular notch is defined in a push plate, and inclined sides of the triangular notch are so configured to function in coordination with inclined edges of wedge-shaped slots formed in upper portion of embed pieces, and thus control of extension or retraction of the embed pieces is effectuated by means of sliding coordination of the inclined sides and the inclined edges.
    Type: Application
    Filed: October 12, 2004
    Publication date: April 13, 2006
    Inventor: Ferretti Chang
  • Publication number: 20060032324
    Abstract: An electric vehicle safety control shaft having a specific assembly for reinforcing movement flexibility and an anti-collision device is capable of flexible movements. The assembly includes a handle formed with a shape as required; and a supporting housing joined below the handle, having a side thereof extended downward to form a connecting plate for fastening with a vehicle body, and a front end thereof disposed with a locating seat for joining with a connecting plate. The connecting plate also has an immobile gear for driving another slightly deviated immobile gear at the other end thereof using an interlocking belt to perform back-and-forth movements, provided with a locating spring and a locating block, thereby forming a complete structure with high stability. The invention is capable of bouncing back an original position thereof after springing in a backward direction without causing damages as colliding with hard objects.
    Type: Application
    Filed: August 11, 2004
    Publication date: February 16, 2006
    Inventor: Ferretti Chang
  • Publication number: 20040135357
    Abstract: The vehicle body for electric vehicle includes a loading frame for holding a seat, and a body frame for disposing operating assemblies namely driving wheels and a motor. Wherein, the driving wheels and the motor are disposed and upheld at the front of the body frame also provided with secondary wheels. At the rear of the body frame is pivotally connected with the rear of the loading frame by means of extended vertical posts, and a combined shock absorber is also provided at the front of the body frame and the loading frame. Guiding wheels capable of floating up and down are further provided at the front of the body frame.
    Type: Application
    Filed: January 10, 2003
    Publication date: July 15, 2004
    Inventor: Ferretti Chang