Fluid sprinkling – spraying – and diffusing – Including valve means in flow line – Rotary valving
Reexamination Certificate
2002-04-05
2003-07-01
Mar, Michael (Department: 3752)
Fluid sprinkling, spraying, and diffusing
Including valve means in flow line
Rotary valving
C239S530000, C239S532000, C239S587400
Reexamination Certificate
active
06585174
ABSTRACT:
RELATED U.S. APPLICATIONS
Not applicable.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
Not applicable.
REFERENCE TO MICROFICHE APPENDIX
Not applicable.
FIELD OF THE INVENTION
The present invention relates generally to a lawn sprinkler, and more particularly to a manually-operated structure for controlling water flow of the lawn sprinkler.
BACKGROUND OF THE INVENTION
As shown in
FIGS. 1 and 2
, the prior art sprinkler nozzles are provided in the handle with a control lever for regulating the water flow. In operation, the control lever must be constantly maneuvered with finger of a user of the sprinkler nozzles. It is conceivably tiresome and inconvenient to press or rotate the control levers for a prolonged period of time.
BRIEF SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a lawn sprinkler nozzle with a manually-operated structure for controlling the water flow of the lawn sprinkler nozzle. The water flow control structure is located between the nozzle and the handle and is formed of hollow cylindrical body, a ball valve, and a control knob. The hollow cylindrical body is extended from one end of the handle. The ball valve is rotatably located in the interior of the cylindrical body such that the ball valve is linked with the control knob. As the control knob is turned with thumb the ball valve is actuated to turn to allow the water to flow through the water hole of the ball valve.
REFERENCES:
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patent: 2289889 (1942-07-01), Stick et al.
patent: 2753219 (1956-07-01), Matarese
patent: 3083725 (1963-04-01), Moen
patent: 3412941 (1968-11-01), Steinback
patent: 5031839 (1991-07-01), Waldrum
patent: 6216965 (2001-04-01), Chao
patent: 6220527 (2001-04-01), Chen et al.
patent: 6254017 (2001-07-01), Kuo
patent: 6471147 (2002-10-01), Kuo
Huang, Dustin; U.S. patent application No. 10/120,434: Claim 1.
Gorman Darren
Harrison & Egbert
Mar Michael
LandOfFree
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