Patents by Inventor I-Ho Li

I-Ho Li 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: 6278216
    Abstract: A vehicle motor for a motor bicycle, which includes a wheel hub, a rotor, a stator, and a wheel axle, wherein the rotor includes a yoke ring fixedly mounted inside the wheel hub and a plurality of magnets equiangularly arranged inside the yoke ring; the stator includes a disk body fixedly mounted on the wheel axle and suspended inside the wheel hub within the rotor, and a silicon steel stack fixedly mounted around the periphery of the disk body, the silicon steel stack having a plurality T-teeth, the number of the T-teeth being not a common multiple of the number of the magnets so that vibration and cogging torque can be minimized during rotary motion of the rotor relative to the stator, and a three-phase winding mounted on the T-teeth of the silicon steel stack of the disk stator.
    Type: Grant
    Filed: June 7, 1999
    Date of Patent: August 21, 2001
    Inventor: I-Ho Li
  • Patent number: 5704441
    Abstract: The driving controller of a electromotive bicycle is installed on a electromotive bicycle comprising a driving motor and a battery, wherein, the large gear is installed with an arc-shaped slot, compressing spring, and two graphite brushes, and the portions of the inside and outside of the large gear are installed with an inner cover, copper film PC, outside cover, variale resistor, extending spring and other components which are matched with the check plate of the foot pedal crank and convex segment of the crank to drive the frame body to present a rotary movement by two foot pedals, thus the driving controller of the present invention is constructed.
    Type: Grant
    Filed: April 16, 1996
    Date of Patent: January 6, 1998
    Inventor: I-Ho Li
  • Patent number: 5581136
    Abstract: An auxiliary magnetic motor (AMM) comprises a fixed ring formed of a multi-layer flat silicon steel plate with a plurality of coils formed thereon, the fixed ring being fixedly supported within a motor case. The AMM also comprises at appropriate positions on the fixed ring at least three Hall effect IC sensors for sensing and producing a switching sequence signal for the fixed ring. The motor case center connects to one end of the axle of the bicycle wheel to be driven. The AMM further comprises a flat rotating plate having an outer ring portion having formed thereon a plurality of magnetic elements.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: December 3, 1996
    Inventor: I-Ho Li
  • Patent number: 5450915
    Abstract: An electric motor-in-wheel includes an armature formed of a stack of silicon steel plates and a winding wound round the stack of silicon steel plates and received within the motor casing, a flat type commutator mounted within the armature in the center and connected thereto in a flush manner so that the width and the space of motor can be reduced and the torque of motor is sufficient without the need for a planetgear assembly. A programmable control circuit connected to the armature by electric wires which are inserted through a wire hole on the wheel axle, the programmable control circuit detects the rotation speed of the outer shell of the motor so as to automatically control the motor to work or cut off power supply from the motor according to a predetermined speed range.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: September 19, 1995
    Inventor: I-Ho Li
  • Patent number: 5272938
    Abstract: A flat rim type motor drive mechanism is disclosed for driving a bicycle which includes a motor having a rotor made of a multi-layer mylar film rotor coil and fastened inside a housing coupled to the spokes of either wheel of a bicycle, an epicyclic gearing fastened inside the housing and driven by the motor to rotate the wheel of the bicycle via the housing and the spokes, and a swivel type speed governor handle controlled to regulate the voltage and current from a DC power supply to the motor.
    Type: Grant
    Filed: December 4, 1992
    Date of Patent: December 28, 1993
    Inventors: Chi-Hsueh Hsu, I-Ho Li