Patents by Inventor Jin L. Hsiao

Jin L. Hsiao 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).

  • Pressure regulator with cam mechanism for spring tension adjustment
    Patent number: 4777978
    Abstract: A pressure regulator includes a valve urged by a spring and a plunger in connection with the spring to adjust the tension of the spring. The plunger has a transverse pin engaging with a camming face of a sleeve around the plunger. The camming face lies in a plane inclining a radial plane of the plunger and causes the plunger to move axially when the transverse pin moves along the camming face.
    Type: Grant
    Filed: October 27, 1987
    Date of Patent: October 18, 1988
    Inventor: Jin L. Hsiao