Patents by Inventor Yu-Tsang Chi

Yu-Tsang Chi 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).

  • Publication number: 20080060924
    Abstract: A non-touching limit switch comprises: an electronic sensor base having an upper housing, an aligning chip, an electronic sensor unit, and a lower housing; wherein the electronic sensor unit and the aligning chip are embedded within a hollow housing resulted from joining the upper housing with the lower housing, and a through opening is disposed at a lateral side of the hollow housing for allowing an extended portion of a control base to connect to; a control base comprising a shaft-cover bracket and a sensing and aligning portion; wherein the shaft-cover bracket is fitted into the through opening of the electronic sensor base, and the sensing and aligning portion is connected to a trigger source via a sensing component.
    Type: Application
    Filed: August 15, 2007
    Publication date: March 13, 2008
    Inventor: YU-TSANG CHI
  • Patent number: 5931571
    Abstract: The present invention is related to an improved structure of an alarm lamp which is installed on all types of finishing mechanisms, for example, working machines, lathes, stands and other machines. A shock proof structure having a shock proof effect is additionally added to the lower part of said alarm lamp. The assembled structure is combined on a pillar, and then the pillar and associated installing structures are installed at a proper position on a finishing machine. The shock proof structure is formed by a shock proof base, elastic bodies, and a case of said shock proof base, wherein said shock proof base is connected under the combining base of the alarm lamp body. A plurality of elastic bodies are individually installed within openings of a fixing disk of the shock proof base and within openings of the case of said shock proof base. The two layers of overlapped elastic bodies are matched with each other.
    Type: Grant
    Filed: July 10, 1997
    Date of Patent: August 3, 1999
    Inventor: Yu-Tsang Chi
  • Patent number: 5898380
    Abstract: The present invention is related to a shock endurable alarm lamp which is comprised of a light emitting structure and a shock proof structure. The light emitting structure is constructed from a plurality of lampshades and lamp base structures. A shock proof structure is installed on the bottom of the light emitting structure. The shock proof structure has two layers of spring structures installed on the upper and lower sides of a fixing base, and then a bolt is inserted downwards into the two layer structures for aligning the springs. Finally, a bushing covers the outside of the structure. Therefore, a shock proof structure is formed. Next, the whole structure is installed on a machine which needs an alarm lamp. The shock proof structure formed by the two sets of springs will cause oscillations induced from the machine to be absorbed, thereby sustaining the structure and stability of the alarm lamp.
    Type: Grant
    Filed: July 10, 1997
    Date of Patent: April 27, 1999
    Inventor: Yu-Tsang Chi