Patents by Inventor Sung-Nan Liao

Sung-Nan Liao 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: 7318487
    Abstract: A pneumatic tool has a body, a handle, a clip, a biasing member and a cap. The handle is formed on and extends from the body and has a free end and an annular shank extending from the free end. The clip is rotatably and slidably mounted on the shank and has a collar and a clip tab. The collar is rotatably and slidably mounted around the annular shank and has multiple teeth formed on a side of the collar facing away from the body. The clip tab extends from the collar. The biasing member is mounted around the annular shank and has two ends abutting respectively with the handle and the collar. The cap is detachably attached to the shank and has multiple recesses respectively corresponding to and engaging with the teeth on the collar.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: January 15, 2008
    Assignee: Besco Pneumatic Corp.
    Inventor: Sung-Nan Liao
  • Publication number: 20070102176
    Abstract: A pneumatic tool has a body, a handle, a clip, a biasing member and a cap. The handle is formed on and extends from the body and has a free end and an annular shank extending from the free end. The clip is rotatably and slidably mounted on the shank and has a collar and a clip tab. The collar is rotatably and slidably mounted around the annular shank and has multiple teeth formed on a side of the collar facing away from the body. The clip tab extends from the collar. The biasing member is mounted around the annular shank and has two ends abutting respectively with the handle and the collar. The cap is detachably attached to the shank and has multiple recesses respectively corresponding to and engaging with the teeth on the collar.
    Type: Application
    Filed: November 7, 2005
    Publication date: May 10, 2007
    Inventor: Sung-Nan Liao