Patents by Inventor Chan S. Huang

Chan S. Huang 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: 4920831
    Abstract: This invention relates to a portable vehicle-carrying wrench which provides controlled torque to prevent damage to related elements, comprising a housing assembly, a tool assembly and a trigger assembly, in which the housing assembly includes a motor casing, a tool casing, a front and rear cover and a handle. The tool assembly is located in the interior of the tool casing and the rotation force of a reversible motor is transmitted to a drive member. By means of an arrester installed inside a main body, the front and rear position moving can be controlled according to the rotation speed, serving as a means to further exert an indirect control over a follower shaft to determine whether it will be continuously operated or not, so as to enable the motor to be regulated into positive or reversible output according to its actual requirements and hence to achieve the purpose of tightening or loosening bolts or nuts used for mounting a tire on a vehicle.
    Type: Grant
    Filed: April 19, 1988
    Date of Patent: May 1, 1990
    Assignee: Dora Hsiao Ling Huang
    Inventor: Chan S. Huang
  • Patent number: 4727780
    Abstract: The vehicle-carrying purpose wrench mainly comprises a housing assembly and a tool assembly wherein the housing assembly further includes a motor casing, a tool casing, a cover and a handle. The tool assembly disposed in the tool casing cooperates with a reversible motor received in the motor casing. By controlling the trigger assembly mounted in the handle, the rotation force can be transmitted to the tool assembly and hence to achieve the purpose of tightening or loosening the screws used for fixing a tire to a vehicle.
    Type: Grant
    Filed: August 25, 1986
    Date of Patent: March 1, 1988
    Inventor: Chan S. Huang