Patents by Inventor Wen Li Guo

Wen Li Guo 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: 5875970
    Abstract: A sprinkler includes a housing having a water inlet and a water outlet. A plug is slidably secured in the housing and may be moved toward and away from the water outlet for adjusting outlet water quantity. A block is rotatably supported in the housing and has a helical groove for engaging with the plug and for moving the plug forward and rearward relative to the water outlet. The water outlet quantity may thus be adjusted for allowing much water to sprinkle the farther area and for allowing less water to sprinkle the closer area to the sprinkler.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: March 2, 1999
    Inventor: Wen Li Guo
  • Patent number: 5845850
    Abstract: A sprinkler includes a tube rotatably secured in a base for receiving water. A pipe has an extension rotatably secured to the tube and has a number of annular recesses and ports. A number of sleeves are rotatably engaged in the annular recesses of the pipe and each has one or more outlets adjustable to different angular position relative to the pipe for allowing the pipe to be rotated by water flowing out through the outlets. A bar may secure the pipe to the tube for allowing the tube and the pipe to be rotated in concert with each other.
    Type: Grant
    Filed: May 1, 1997
    Date of Patent: December 8, 1998
    Inventor: Wen Li Guo
  • Patent number: 5823442
    Abstract: A spray nozzle includes a rod extended from a casing which has two inlets. A follower is rotatably engaging with the rod and has a barrel aligned with one inlet and has one or more cylindrical members aligned with the other inlet. A board and a cap are secured to the rod. A control ferrule may rotate the follower and the disc to align either of the inlets with the barrel and the cylindrical members. The water is allowed to flow out through a peripheral gap formed between the control ferrule and the cap. The spray nozzle includes a greatly simplified configuration.
    Type: Grant
    Filed: April 22, 1996
    Date of Patent: October 20, 1998
    Inventor: Wen-Li Guo
  • Patent number: 5752630
    Abstract: A spray gun includes a panel secured on top by one or more connecting members. The panel includes an opening for hanging to a protruding nail and includes a displaying area for displaying information. The panel includes a link and includes a sleeve secured to the free end portion of the link for engaging on the front portion of the spray gun so as to protect the outer thread formed in the front portion of the spray gun.
    Type: Grant
    Filed: May 28, 1996
    Date of Patent: May 19, 1998
    Inventor: Wen-Li Guo
  • Patent number: 5746375
    Abstract: A sprayer device includes a base rotatably supported on a housing and having an inner chamber for receiving water. A rotary member is rotatably secured on the base and may receive water from the base. The rotary member includes one or more rows of radially aligned holes each having a slope for allowing the water to flow out of the rotary member in a slope and for allowing the water to apply a force against the rotary member so as to rotate the rotary member relative to the base. A handle is pivotally coupled to the housing and includes a stick for securing to the ground.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: May 5, 1998
    Inventor: Wen-Li Guo
  • Patent number: 5722597
    Abstract: A spray nozzle includes a casing having a chamber for receiving water and having a side passage and a middle passage formed in an extension. A valve is rotatably supported in the casing and has an upper notch for aligning with the side passage and has a lower notch for aligning with the middle passage. A housing and a head are rotatably secured to the casing. The head has one or more annual walls for aligning with the middle passage. The valve may be rotated to align either the upper or the lower notch with the respective passages so as to select a different outlet pattern.
    Type: Grant
    Filed: April 10, 1996
    Date of Patent: March 3, 1998
    Inventor: Wen-Li Guo
  • Patent number: 5711421
    Abstract: A spray gun includes a panel having a number of openings for engaging with a number of elements which are coupled to the panel by a number of studs. The elements may be disengaged from the panel by braking the studs for allowing the elements to be assembled into the spray gun. The elements are secured to the panel for allowing the elements and the panel to be easily displayed. The elements may be easily seen by the user and may be easily assembled together by the users themselves.
    Type: Grant
    Filed: September 12, 1996
    Date of Patent: January 27, 1998
    Inventor: Wen Li Guo
  • Patent number: 5690282
    Abstract: A spray nozzle includes a casing having a middle and a side passages formed in the curved front. A valve is rotatably supported in the casing and has an upper and a lower notches for aligning with the passages. A housing is rotatably secured to the casing and has two or more channels for selectively aligning with the middle passage and has one passageway for communicating with the side passage. The valve may be rotated so as to selectively align the upper and the lower notches with the side and the middle passages.
    Type: Grant
    Filed: April 10, 1996
    Date of Patent: November 25, 1997
    Inventor: Wen-Li Guo
  • Patent number: D383830
    Type: Grant
    Filed: May 28, 1996
    Date of Patent: September 16, 1997
    Inventor: Wen-Li Guo
  • Patent number: D385012
    Type: Grant
    Filed: July 11, 1996
    Date of Patent: October 14, 1997
    Inventor: Wen-Li Guo
  • Patent number: D385948
    Type: Grant
    Filed: September 12, 1996
    Date of Patent: November 4, 1997
    Inventor: Wen Li Guo
  • Patent number: D387127
    Type: Grant
    Filed: September 9, 1996
    Date of Patent: December 2, 1997
    Inventor: Wen Li Guo
  • Patent number: D390633
    Type: Grant
    Filed: February 27, 1997
    Date of Patent: February 10, 1998
    Inventor: Wen-Li Guo
  • Patent number: D390635
    Type: Grant
    Filed: February 7, 1997
    Date of Patent: February 10, 1998
    Inventor: Wen-Li Guo
  • Patent number: D392719
    Type: Grant
    Filed: November 18, 1996
    Date of Patent: March 24, 1998
    Inventor: Wen-Li Guo
  • Patent number: D394491
    Type: Grant
    Filed: June 20, 1997
    Date of Patent: May 19, 1998
    Inventor: Wen Li Guo
  • Patent number: D409720
    Type: Grant
    Filed: April 27, 1998
    Date of Patent: May 11, 1999
    Inventor: Wen-Li Guo
  • Patent number: D422680
    Type: Grant
    Filed: July 1, 1999
    Date of Patent: April 11, 2000
    Inventor: Wen-Li Guo
  • Patent number: D424165
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: May 2, 2000
    Inventor: Wen-Li Guo
  • Patent number: D425603
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: May 23, 2000
    Inventor: Wen-Li Guo