Patents by Inventor Long C. Fu

Long C. Fu 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).

  • Method and an apparatus for inductively welding a front fork of bicycle
    Patent number: 4584453
    Abstract: The present invention discloses a method for welding the front fork of a bicycle which makes each junctures among the joint, the handlebar, and the fork blades simultaneously reach the melting temperature of a weld metal, so that the weld metal located in the joint evenly distributes over each juncture. The present invention also discloses an apparatus for welding the front fork of a bicycle which utilizes two high-frequency induction coils to heat the front fork respectively from the outer surface and the inner surface of the front fork, and controls the voltage applied to the high-frequency induction coils and the time span of the heating throughout all of the heating and welding procedures.
    Type: Grant
    Filed: February 6, 1985
    Date of Patent: April 22, 1986
    Inventor: Long C. Fu