Patents by Inventor Wen Li Kao

Wen Li Kao 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: 6866208
    Abstract: A gardening spraying nozzle comprises an outer annular cover installed at a water outlet of a spraying nozzle, a water outlet cover integrally formed with the outer annular cover, a water control disk within the water outlet cover, and an water outlet valve coupling to the water outlet of the spraying nozzle. The outer annular cover is integrally formed to the water outlet cover. The water outlet cover includes a mist-like spraying seal section and a low pressure water seal section; an annular end surface of the water control disk is formed with a sealing section corresponding to the low pressure water seal section of the water outlet cover. Thereby, the water outlet cover is buckled by the water control disk and the water control disk is buckled by the water outlet valve. Thereby, when the outer annular cover is rotated. It moves with the other element.
    Type: Grant
    Filed: May 15, 2003
    Date of Patent: March 15, 2005
    Inventor: Wen Li Kao
  • Publication number: 20040227017
    Abstract: A gardening spraying nozzle comprises an outer annular cover installed at a water outlet of a spraying nozzle, a water outlet cover integrally formed with the outer annular cover, a water control disk within the water outlet cover, and an water outlet valve coupling to the water outlet of the spraying nozzle. The outer annular cover is integrally formed to the water outlet cover. The water outlet cover includes a mist-like spraying seal section and a low pressure water seal section; an annular end surface of the water control disk is formed with a sealing section corresponding to the low pressure water seal section of the water outlet cover. Thereby, the water outlet cover is buckled by the water control disk and the water control disk is buckled by the water outlet valve. Thereby, when the outer annular cover is rotated. It moves with the other element.
    Type: Application
    Filed: May 15, 2003
    Publication date: November 18, 2004
    Inventor: Wen Li Kao
  • Patent number: 6726129
    Abstract: A spray nozzle has a main rod extended from a handle. The main rod is formed with a locking hole. A fixing hole is formed aside the locking hole. A spring and a rolling ball are pre-mounted in the fixing hole. A second half dome shape joint of a nozzle is protruded with an annular locking seat. A periphery of the annular locking seat is formed with an annular recess which is exactly communicated to the water inlet of the nozzle. A center of the annular locking seat is formed with a pivotal hole which is coupled to the locking hole of the main rod. The annular locking seat of the nozzle has a plurality of limiting holes; thereby, the rolling balls in the fixing hole of the main rod being confined in the limiting holes. The orientation of the nozzle is adjustable with respect to the main rod.
    Type: Grant
    Filed: April 24, 2003
    Date of Patent: April 27, 2004
    Inventor: Wen Li Kao
  • Patent number: 6698694
    Abstract: A tube position limiter comprises a supporting frame for locking to a wall and a positioning cylinder for receiving a tube. A center of the supporting frame is formed with a receiving hole for receiving the positioning cylinder. A top of the positioning cylinder is formed with a curl lip for receiving the tube. The positioning cylinder is placed into the receiving hole so that the curl lip of the positioning cylinder exactly places on the supporting frame. The helical wound tube is placed in a bottom of the positioning cylinder. A water inlet end of the tube exactly protrudes from a via hole at a bottom of the positioning cylinder. In use of the tube, the curl lip of the positioning cylinder has a round opening so that the tube is taken out easily. When it is desired to wind the tube, the tube is wound easily and conveniently.
    Type: Grant
    Filed: April 24, 2003
    Date of Patent: March 2, 2004
    Inventor: Wen Li Kao
  • Publication number: 20030205646
    Abstract: A tube position limiter comprises a supporting frame for locking to a wall and a positioning cylinder for receiving a tube. A center of the supporting frame is formed with a receiving hole for receiving the positioning cylinder. A top of the positioning cylinder is formed with a curl lip for receiving the tube. The positioning cylinder is placed into the receiving hole so that the curl lip of the positioning cylinder exactly places on the supporting frame. The helical wound tube is placed in a bottom of the positioning cylinder. A water inlet end of the tube exactly protrudes from a via hole at a bottom of the positioning cylinder. In use of the tube, the curl lip of the positioning cylinder has a round opening so that the tube is taken out easily. When it is desired to wind the tube, the tube is wound easily and conveniently.
    Type: Application
    Filed: April 24, 2003
    Publication date: November 6, 2003
    Inventor: Wen Li Kao
  • Publication number: 20030201348
    Abstract: A spray nozzle has a main rod extended from a handle. The main rod is formed with a locking hole. A fixing hole is formed aside the locking hole. A spring and a rolling ball are pre-mounted in the fixing hole. A second half dome shape joint of a nozzle is protruded with an annular locking seat. A periphery of the annular locking seat is formed with an annular recess which is exactly communicated to the water inlet of the nozzle. A center of the annular locking seat is formed with a pivotal hole which is coupled to the locking hole of the main rod. The annular locking seat of the nozzle has a plurality of limiting holes; thereby, the rolling balls in the fixing hole of the main rod being confined in the limiting holes. The orientation of the nozzle is adjustable with respect to the main rod.
    Type: Application
    Filed: April 24, 2003
    Publication date: October 30, 2003
    Inventor: Wen Li Kao