Patents by Inventor Tat Y. Horng

Tat Y. Horng 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).

  • Oscillating piston controlled by piloted valve, piston position controls pilot valve
    Patent number: 5105720
    Abstract: A cylinder including a housing disposed between a head and a board, a body disposed in the housing and closely contacted with the head, a piston slidably disposed in the housing, a piston rod coupled to the piston, a valve including five rings being disposed in the head, a valve including five annular grooves being disposed in the body, an inlet being formed in the head for continuously supplying hydraulic oil into the cylinder, the piston can be urged to move in a reciprocating action without changing the supplying direction of the hydraulic oil.
    Type: Grant
    Filed: May 16, 1991
    Date of Patent: April 21, 1992
    Inventor: Tat Y. Horng