Patents by Inventor Hui-Chen Chao

Hui-Chen Chao 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: 6848587
    Abstract: A rack includes a top frame and a bottom frame. The top frame is provided with a plurality of through slots for accommodating the barrels of the pistol-type nozzles. The bottom frame is provided with a plurality of locating slots and locating seats. The locating slots and the locating seats are arranged alternately in rows corresponding in location to the through slots of the top frame. The locating slots are provided with a locating projection, which is fitted into the hose connection hole of the hand grip of the pistol-type nozzles. The locating seats are provided with a recessed portion for resting the control knob of the pistol-type nozzles.
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: February 1, 2005
    Inventor: Hui-Chen Chao
  • Patent number: 6732869
    Abstract: A rack is designed to hold a plurality of pistol-type nozzles, each having a barrel which is provided at the top end with a nozzle, and at the bottom end with a connection portion and an adjustment knob. The rack comprises a top frame and a bottom frame. The top frame is provided with a plurality of through slots for holding the barrels of the pistol nozzles. The bottom frame is provided with a plurality of locating slots, each having a seat, a locating projection extending from the seat, and a confinement recess. The connection portion and the adjustment knob are located in the locating slot of the bottom frame such that the connection portion is seated on the seat, and that the locating projection is inserted into a center hole of the connection portion, and that the adjustment knob is confined in the confinement recess.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: May 11, 2004
    Inventor: Hui-Chen Chao
  • Patent number: 6695153
    Abstract: A rack is designed to hold a plurality of pistol-type lawn sprinkler nozzles and is formed of a top frame and a bottom frame. The top frame is provided with a plurality of through slots for holding the barrels of the pistol-type sprinkler nozzles. The bottom frame is provided with a plurality of locating slots corresponding in location to the through slots of the top frame. Each of the locating slots is provided with a seat, a locating projection extending from the seat, and a confinement portion. The bottom end of the hand grip of the sprinkler nozzles is seated on the seat such that the locating projection is inserted into a center hole of the hand grip. The confinement portion is used to confine the control lever of the sprinkler nozzles.
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: February 24, 2004
    Inventor: Hui-Chen Chao
  • Patent number: 6568603
    Abstract: A prostrate water sprinkler includes a base on which one or more spray tubes are disposed. The spray tubes are provided with a plurality of jet nozzles which are arranged in one or two rows along the longitudinal direction of the spray tubes. The jet nozzles can adjust the spray angle thereof by an adjustment member which is mounted on the spray tubes.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: May 27, 2003
    Inventor: Hui-Chen Chao
  • Patent number: 6520430
    Abstract: A prostrate garden sprinkler base comprises a prostrate main body provided with a hose connector, a spray tube member in communication with the hose connector, and a shield for concealing and protecting the spray tube member. The shield is provided with a plurality of through slots which are arranged in such a pattern that water streams emitted by jet nozzles of the spray tube member are sprayed out via the through slots of the shield for watering a garden, lawn, golf course, and the like.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: February 18, 2003
    Inventor: Hui-Chen Chao
  • Publication number: 20020145059
    Abstract: A prostrate garden sprinkler base comprises a prostrate main body provided with a hose connector, a spray tube member in communication with the hose connector, and a shield for concealing and protecting the spray tube member. The shield is provided with a plurality of through slots which are arranged in such a pattern that water streams emitted by jet nozzles of the spray tube member are sprayed out via the through slots of the shield for watering a garden, lawn, golf course, and the like.
    Type: Application
    Filed: April 9, 2001
    Publication date: October 10, 2002
    Inventor: Hui-Chen Chao
  • Publication number: 20020130204
    Abstract: A prostrate water sprinkler comprises a base on which one or more spray tubes are disposed. The spray tubes are provided with a plurality of jet nozzles which are arranged in one or two rows along the longitudinal direction of the spray tubes. The jet nozzles can be adjusted in spray angle thereof by an adjustment member which is mounted on the spray tubes.
    Type: Application
    Filed: March 9, 2001
    Publication date: September 19, 2002
    Inventor: Hui-Chen Chao
  • Patent number: 6398045
    Abstract: A water nozzle rack includes a plurality of upright support rods, a top shelf fixed horizontally to top ends of the upright support rods, and a plurality of support shelves located under the top shelf and fixed horizontally to the upright support rods. The top shelf is provided with a plurality of nozzle-locating loops for holding the barrels of the nozzles.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: June 4, 2002
    Inventor: Hui-Chen Chao
  • Patent number: 6254016
    Abstract: A water pistol nozzle including a handle and one or more nozzles detachably fastened to the handle. The handle is provided at one end with a first engagement portion which is provided with a retaining slot, a guide opening, and a washer. The nozzles are provided at one end with a second engagement portion which is provided with a retaining protrusion and a washer. The nozzles are detachably fastened to the handle such that the retaining protrusion of the nozzles is removably received in the retaining slot of the handle.
    Type: Grant
    Filed: August 15, 2000
    Date of Patent: July 3, 2001
    Inventor: Hui-Chen Chao
  • Patent number: 6230988
    Abstract: A water nozzle including a main body which is connected to a water discharge tube which is in turn connected with a head seat. The head seat is provided to a water outlet and locating column to which a nozzle cover is fastened by a fastening bolt. The nozzle cover is provided with a plurality of jet holes. A water distribution disk is fastened with the nozzle cover such that the through holes of the water distribution disk are corresponding in location to the jet holes of the nozzle cover. The nozzle cover is provided with a plurality of center jet holes, peripheral jet holes, and peripheral flow holes. The water distribution disk is provided with a plurality of flow guiding holes corresponding in location to the center jet holes, peripheral jet holes, and peripheral flow holes. The water nozzle is thus capable of ejecting water in various forms.
    Type: Grant
    Filed: March 28, 2000
    Date of Patent: May 15, 2001
    Inventor: Hui-Chen Chao
  • Patent number: 6216965
    Abstract: A sprinkler nozzle including a grip which is fastened to an outer pipe. An inner pipe is received in the outer pipe such that the inner pipe can be extracted or retracted in conjunction with a control member. The outer pipe is provided at the top end with a pivoting member for fastening rotatably a head through which water is emitted in a specific direction.
    Type: Grant
    Filed: October 3, 2000
    Date of Patent: April 17, 2001
    Inventor: Hui-Chen Chao
  • Patent number: D441436
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: May 1, 2001
    Inventor: Hui-Chen Chao
  • Patent number: D444847
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: July 10, 2001
    Inventor: Hui-Chen Chao
  • Patent number: D447537
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: September 4, 2001
    Inventor: Hui-Chen Chao
  • Patent number: D447538
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: September 4, 2001
    Inventor: Hui-Chen Chao
  • Patent number: D447888
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: September 18, 2001
    Inventor: Hui-Chen Chao
  • Patent number: D451982
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: December 11, 2001
    Inventor: Hui-Chen Chao
  • Patent number: D452297
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: December 18, 2001
    Inventor: Hui-Chen Chao
  • Patent number: D458774
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: June 18, 2002
    Inventor: Hui-Chen Chao
  • Patent number: D459436
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: June 25, 2002
    Inventor: Hui-Chen Chao