Sprinkler capable of distributing water in an even pattern

Details Sprinkler capable of distributing water in an even pattern Sprinkler capable of distributing water in an even pattern

2001-09-21

2003-09-23

Douglas, Lisa A. (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Distributor continuously moves relative to support during...

C239S237000, C239S240000, C239S241000, C239S263000, C239SDIG001

Reexamination Certificate

active

06622940

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to a sprinkler, and more particularly to a sprinkler which is provided with means to distribute water in an even pattern within a distribution range thereof.
2. Description of Related Art
As shown in
FIG. 1
a prior art lawn sprinkler is capable of watering a relatively large area of a lawn and is formed of a main body
10
, a nozzle
11
, a rotation guiding member
12
, and a position confining member
13
. The nozzle
11
works in conjunction with the rotation guiding member
12
and the position confining member
13
such that the parabolic streams
14
of water are distributed by the prior art lawn sprinkler.
Such a prior art lawn sprinkler as described above is defective in design because it is incapable of a uniform distribution of water, as illustrated in
FIG. 2
in which the water distribution points are denoted by the letter “A”. The water distribution is relatively sparse in the areas closer to the main body
10
of the prior art lawn sprinkler. Even though the uneven water distribution can be corrected by adjusting the angle of elevation of the nozzle
11
, it is economically infeasible to do such adjustment one by one in a large area in which a number of the sprinklers are located.
BRIEF SUMMARY OF THE INVENTION
The primary objective of the present invention is therefore to provide a sprinkler which is free of the deficiency of the prior art sprinkler described above.
In keeping with the principle of the present invention, the foregoing objective of the present invention is attained by the sprinkler comprising a main body, a primary nozzle, and an auxiliary nozzle. The main body is provided with a water admitting pipe in communication with the primary nozzle by which a portion of the incoming water is distributed to the areas farther from the sprinkler. The auxiliary nozzle is mounted on the top of the main body and is provided with an inclined edge forming adjustably a gap in conjunction with an inclined guide edge of a water chamber of the main body. The rest of the incoming water is guided into the water chamber from which the water is distributed via the gap to the areas closer to the sprinkler.
The features and the advantages of the present invention will be more readily understood upon a thoughtful deliberation of the following detailed description of a preferred embodiment of the present invention with reference to the accompanying drawings.


REFERENCES:
patent: 3669356 (1972-06-01), Senninger
patent: 3979066 (1976-09-01), Fortner
patent: 4330087 (1982-05-01), Wood et al.
patent: 5123597 (1992-06-01), Bendall

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