Patents by Inventor Cheng-An Wang

Cheng-An Wang 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: 7992802
    Abstract: The present invention provides a bumping-type sprinkler. The sprinkler includes a main body, where an inlet pipe coupling end is mounted at the lower end, an upper frame is mounted at the upper end, and a water outlet is arranged at lower flange nearby the upper frame. A revolving member, arranged onto the upper frame of the main body, has a torsional spring and a revolving portion. An outflow turntable is assembled corresponding to the water outlet of the main body. A pivot portion is placed centrally on the outflow turntable for screwing it laterally on the water outlet at interval. A plurality of outflow guide holes are arranged at intervals along a circular path of the eccentric circumferential portion of the outflow turntable. The outflow guide holes can be located corresponding to the water outlet in line with the change of rotation/displacement angle of the outflow turntable.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: August 9, 2011
    Inventor: Cheng-An Wang
  • Publication number: 20100270398
    Abstract: The present invention provides a bumping-type sprinkler. The sprinkler includes a main body, where an inlet pipe coupling end is mounted at the lower end, an upper frame is mounted at the upper end, and a water outlet is arranged at lower flange nearby the upper frame. A revolving member, arranged onto the upper frame of the main body, has a torsional spring and a revolving portion. An outflow turntable is assembled corresponding to the water outlet of the main body. A pivot portion is placed centrally on the outflow turntable for screwing it laterally on the water outlet at interval. A plurality of outflow guide holes are arranged at intervals along a circular path of the eccentric circumferential portion of the outflow turntable. The outflow guide holes can be located corresponding to the water outlet in line with the change of rotation/displacement angle of the outflow turntable.
    Type: Application
    Filed: April 23, 2009
    Publication date: October 28, 2010
    Inventor: Cheng-An WANG
  • Publication number: 20100147973
    Abstract: The present invention provides an impingement sprinkler with variable outflow, including a main body, containing a moving inlet connector bolted at the bottom, a spray nozzle, an impingement deflector ledge, flexibly assembled onto the preset location of the main body, and an adjustable spray nozzle. The deflector ledge has a hydraulic pushing portion and a torsional spring arranged laterally thereon. The hydraulic pushing portion is positioned correspondingly at intervals in front of the spray nozzle. The adjustable spray nozzle is rotated manually to adjust the water outflow mode and arranged at intervals with the spray nozzle of the main body. The adjustable spray holes are arranged circularly at intervals and each have a different outflow.
    Type: Application
    Filed: December 15, 2008
    Publication date: June 17, 2010
    Inventor: Cheng-An WANG