Patents by Inventor Cha-Che Hu

Cha-Che 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).

  • Magnetically restored golf practice device with visual and audio display
    Patent number: 5513847
    Abstract: A golf practice device includes: a supporting base, a golf ball secured on a linking arm having a sleeve pivotally mounted on a shaft erected on the base, two rotor magnets having opposite outer magnetic poles and diametrically secured on two opposite ends of the sleeve, two stator magnets having opposite inner magnetic poles and secured on two opposite ends of a housing for surrounding the two rotor magnets for a mutual attraction between each stator magnet and each rotor magnet, a power generator having an iron core wound with coil windings on the core and surrounding the two rotor magnets for generating power due to change of magnetic field when rotating the sleeve and the two rotor magnets with respect to the iron core as driven by a hitting on the golf ball, and a display device for converting the power to an optical and audio signal for a visual and audio display for indicating the striking strength as hit by the golf player, and upon magnetic attraction between each stator magnet and each rotor magnet,
    Type: Grant
    Filed: July 10, 1995
    Date of Patent: May 7, 1996
    Inventors: Chih-Chang Hu, Cha-Che Hu
  • Magnetically restored golf practice device
    Patent number: 5390930
    Abstract: A golf practice includes: a pivoting base fixed on a mat or a grass yard, a golf ball secured on a linking arm having a sleeve pivotally mounted on a shaft vertically erected on the pivoting base, two rotor magnets having opposite outer magnetic poles and diametrically secured on two opposite ends of the sleeve, and two stator magnets having opposite inner magnetic poles and respectively secured on two opposite ends of a hanging bracket fixed on a top portion of the shaft, with the two stator magnets diametrically aligned with the two rotor magnets fixed on the sleeve rotatably mounted on the shaft, each rotor magnet approximating each stator magnet by a rotation gap defined between the rotor magnet and the stator magnet, each rotor magnet having an outer magnetic pole facing an inner magnetic pole of each stator magnet with the outer magnetic pole of the rotor magnet having a polarity opposite to a polarity of the inner magnetic pole of the stator magnet for a mutual attraction between each rotor magnet and
    Type: Grant
    Filed: April 26, 1994
    Date of Patent: February 21, 1995
    Inventors: Chih-Chang Hu, Cha-Che Hu