Patents by Inventor I-Shun Chih

I-Shun Chih 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: 6334577
    Abstract: A double rocking sprinkler has a first casting, a second casing coupled with the first casing, a first cover and a second cover covering the first and the second casings, and a first sprinkle plate and a second sprinkle plate disposed in the sprinkler in series. A drive device is disposed in the sprinkler for rotating the first and second sprinkle plates relative to each other.
    Type: Grant
    Filed: January 18, 2000
    Date of Patent: January 1, 2002
    Inventor: I-Shun Chih
  • Patent number: 6113009
    Abstract: An improved sprinkler adjusting head structure having a spray head with a net like water spray outlet, whole water outlet, and other water pattern outlets. These outlets extended inside the spray head to a connector body with the same number of outlets as those of the spray head. When the spray head is connected with the connector body it has specific position for each outlet. The water outlet of a main body deviates from the center line of the main body and bears against the water inlet in the bottom of the connector. Some of the water pattern outlets in the connector extend toward the spray head are combined with the circulating outlet of the spray head. Also the outlets in the connector are separated into two water outlet chambers by dividers. A concave trough is created in the middle of the several outlets. A water channel connector coordinates the circulating water patterns as well as the connection to the net like water spray, and a whole water outlet.
    Type: Grant
    Filed: July 6, 1998
    Date of Patent: September 5, 2000
    Inventor: I-Shun Chih
  • Patent number: 5944258
    Abstract: A spray gun structure that may be controlled to eject water only or a mixture of water and detergent including a handle, a lever, a connecting body, a gun body, a detergent receiving tank, a securing screw sleeve, a retractable connector, and a nozzle. The lever is provided at a bottom portion of the handle for control of water intake. The connecting body is located at a top portion of the handle and extending forwardly and has a water channel a rear end of which is connected to a water conduit inside the lever. The gun body is connected to a rear portion of the connecting body and having a water channel which communicates with the water conduit of the connecting body such that, after the connecting body and the gun body are assembled, the detergent receiving tank may be mounted on a periphery of the assembly. The securing screw sleeve engages threads at a rear end of the gun body. The retractable connector has a hollow interior and an outer periphery fitted in the water channel of the gun body.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: August 31, 1999
    Inventor: I-Shun Chih
  • Patent number: 5662273
    Abstract: A sprayer gun includes gun body and a handle secured together. The handle includes a valve seat formed in a pathway and a valve slidably engaged in the pathway for engaging with the valve seat so as to block the pathway. An arm is pivotally coupled to the handle and has one end for engaging with the valve. A hook is secured to the handle. A hand grip is pivotally coupled to the handle for engaging with the arm so as to disengage the valve from the valve seat. A knob is slidably engaged in the hand grip. A lever is pivotally coupled to the hand grip and has one end for engaging with the hook so as to secure the hand grip to the handle and has the other end for engaging with the knob. The one end of the lever is disengaged from the hook when the other end of the lever is moved inward of the hand grip by the knob.
    Type: Grant
    Filed: November 27, 1995
    Date of Patent: September 2, 1997
    Inventor: I-Shun Chih
  • Patent number: 5630548
    Abstract: A water spraying gun includes a hand grip extended downward from a gun body and a handle pivotally coupled to the rear portion of the hand grip. A tube is engaged in the gun body and has a mouth formed in the middle portion and has a room formed in the front portion. A piston rod is slidably engaged in the tube and has a rear end coupled to a wall member extended in the inner portion of the handle such that the piston rod will not extend outward beyond the handle and such that the piston rod will not hurt the users. The piston rod includes a plug for engaging with and for enclosing the mouth.
    Type: Grant
    Filed: May 1, 1995
    Date of Patent: May 20, 1997
    Inventor: I-Shun Chih
  • Patent number: D372761
    Type: Grant
    Filed: April 24, 1995
    Date of Patent: August 13, 1996
    Inventor: I-Shun Chih
  • Patent number: D391349
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: February 24, 1998
    Inventor: I-Shun Chih
  • Patent number: D421640
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: March 14, 2000
    Inventor: I-Shun Chih