Sprinkler having oscillatory wave

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.

BACKGROUND OF THE INVENTION 
1. Field of the Invention 
The present invention relates to a sprinkler, and more particularly to a 
sprinkler having an oscillatory wave that may be adjusted. 
2. Description of the Prior Art 
A typical sprinkler is disclosed in U.S. Pat. No. 4,568,023 to Hayes and 
comprises a complicated adjusting mechanism for adjusting the spraying 
angle of the sprinkler. 
The present invention has arisen to mitigate and/or obviate the 
afore-described disadvantages of the conventional sprinklers. 
SUMMARY OF THE INVENTION 
The primary objective of the present invention is to provide a sprinkler 
which includes a greatly simplified configuration for allowing the 
sprinkler to adjust to different oscillation conditions. 
In accordance with one aspect of the invention, there is provided a 
sprinkler comprising a base having a tube for receiving water, the tube 
having a stud, a pipe including an extension rotatably secured to the stud 
of the tube for receiving water from the tube and for allowing the pipe to 
be rotated about the stud, the pipe including a plurality of annular 
recesses and a plurality of ports communicating with the annular recesses, 
and a plurality of sleeves rotatably engaged in the annular recesses of 
the pipe, the sleeves each including at least one first outlet 
communicating with the port for allowing water to flow out of the first 
outlet via the port. The sleeves and the first outlets of the sleeves are 
adapted to be rotated relative to the pipe for allowing outlet water to 
force the pipe to rotate about the stud. 
The sleeves each includes at least one second outlet and a nozzle secured 
in the second outlet. The nozzle has an inclined passage for allowing the 
outlet water to be inclined relative to the second outlet. 
The second outlet each includes at least one rib for engaging with the 
nozzle and each includes a cap for securing the nozzle in the second 
outlet. 
The pipe includes at least one nozzle engaged in the first outlet. 
A conduit includes a first end having a ball rotatably engaged in the stud 
and includes a second end, a gasket is engaged between the ball and the 
stud, a cover is secured to the stud for rotatably retaining the ball in 
the stud, the extension of the pipe is rotatably engaged in the second end 
of the conduit. 
In accordance with another aspect of the invention, there is provided a 
sprinkler comprising a tube rotatably secured in a base for receiving 
water and including a stud and at least one projection, a pipe including 
an extension rotatably secured to the stud of the tube for receiving water 
from the tube and for allowing the pipe to be rotated about the stud, the 
pipe including at least one pin, and at least one bar including a first 
end engaged with the projection of the tube and including a second end for 
engaging with the pin and for securing the pipe to the tube and for 
allowing the tube and the pipe to be rotated in concert with each other 
about the tube. 
The bar has a number of apertures for engaging with the projection and for 
allowing the pipe to be adjusted to different inclined angle relative to 
the tube. The second end of the bar includes a hook for engaging with the 
pin and for allowing the hook to be disengaged from the pin. 
Further objectives and advantages of the present invention will become 
apparent from a careful reading of a detailed description provided 
hereinbelow, with appropriate reference to accompanying drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
Referring to the drawings, and initially to FIGS. 1-3, a sprinkler in 
accordance with the present invention comprises a base 10 including a tube 
11 rotatably secured in the base 10 and coupled to a water reservoir for 
receiving water. The rotational movement of the tube 11 is typical and 
will not be described in further details. The tube 11 includes two 
projections 16 and two stops 111, and includes a stud 12 having an outer 
thread 121 (FIG. 3). A gasket 13 is engaged in the stud 12. A conduit 14 
has a ball 140 rotatably engaged in the stud 12 and engaged with the 
gasket 13. A cover 15 includes an inner thread 152 for engaging with the 
outer thread 121 of the stud 12 and includes an orifice 151 for engaging 
with the ball 140 and for rotatably securing the conduit 14 to the stud 
12. The ball 140 includes a bore 142 and includes a frustum shaped inlet 
141 for allowing water to smoothly flow into the conduit 14 from the tube 
11 when the conduit 14 is rotated relative to the stud 12. 
A pipe 20 includes an extension 21 rotatably engaged in the upper end of 
the conduit 14 and has one or more sealing rings 211 engaged with the 
annular grooves 143 of the conduit 14 for making a water tight seal 
between the extension 21 and the conduit 14 and for allowing the extension 
21 and the pipe 20 to be rotatable about the conduit 14. As shown in FIGS. 
4 and 5, the pipe 20 includes a number of annular recesses 23 and a number 
of ports 25 communicating with the annular recesses 23. A number of 
sleeves 24 of rubber material are engaged in the annular recesses 23 and 
each includes one or more outlets 241, 242 communicating with the ports 
25. One or more nozzles 40 may be engaged in the outlets 241 for forming 
different outlet spraying conditions. A sealing ring 41 may be engaged 
between the nozzle 40 and the outlet 241 for securing the nozzle 40 to the 
outlet 241. The outlets 242 may each include one or more ribs 243 for 
engaging with another nozzle 50 (FIGS. 4, 6, 7) which includes an inclined 
passage 51. A number of caps 60 are secured to the outlets 242 for 
securing the nozzles 50 in the outlets 242 and each includes an opening 61 
communicating with the passage 51 of the nozzle 50. The passage 51 has 
only a portion communicating with the opening 61 such that the water 
flowing through the opening 61 is tilted relative to the outlet 242 and 
such that the pipe 20 may be rotated about the conduit 14 when the sleeves 
24 and the outlets 242 are rotated to different angles (FIG. 8). 
Referring again to FIGS. 1 and 2, one or two bars 31, 32 each has a number 
of apertures 311, 321 engaged with the projections 16 and adjustable 
relative to the projections 16 for allowing the pipe 20 to be adjusted to 
different angular position relative to the tube 11 (FIG. 2). The bars 31, 
32 each includes a hook 312, 322 for engaging with the pins 26 of the pipe 
20 and for securing the pipe 20 to the tube 11 such that the tube 11 and 
the pipe 20 are rotatable in concert with each other about the tube 11. 
Accordingly, the sprinkler in accordance with the present invention 
includes a pipe that may be secured to the tube and rotated in concert 
with the tube and that may be rotated relative to the tube. The sprinkler 
includes a greatly simplified configuration for allowing the sprinkler to 
adjust to different oscillation conditions. 
Although this invention has been described with a certain degree of 
particularity, it is to be understood that the present disclosure has been 
made by way of example only and that numerous changes in the detailed 
construction and the combination and arrangement of parts may be resorted 
to without departing from the spirit and scope of the invention as 
hereinafter claimed.