BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 illustrates a sprinkler play apparatus in accordance with an embodiment of the present invention.
FIG. 2 is a block diagram of the sprinkler play apparatus shown in FIG. 1.
FIG. 3 illustrates a sprinkler play apparatus in accordance with another embodiment of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
In the following description, for purposes of explanation and not limitation, specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known methods and devices are omitted so as to not obscure the description of the present invention with unnecessary detail.
FIG. 1 provides an overview of a sprinkler play apparatus 10 in accordance with an embodiment of the present invention. The apparatus includes a central distribution station 12 and a plurality of sprinkler stations 14. The sprinkler stations are connected to the distribution station by flexible water conduits 16. It is preferred that each of the sprinkler stations include a solenoid-operated valve. Placing the valve within the sprinkler station itself maintains water pressure within the flexible conduit and thereby allows for a near instantaneous spray of water when the valve is activated. The solenoid may be energized by battery power within the sprinkler station itself or by means of electrical conductors connected to the distribution station. In this latter case, the conductors may be routed with or made an integral part of the flexible water conduits. The distribution station 12 is connected to a hose bib 20 by a length of garden hose 22. In embodiments where power for valve operation is supplied from the distribution station, the distribution station is coupled to a low voltage power supply 24.
The distribution station and each of the sprinkler stations may have a padded covering to reduce the possibility of injury in the event that a child falls on one of the stations. The covering may comprise, for example, vinyl padding of the type widely used for swimming pool floats. In addition, the distribution and sprinkler stations have a dome or cone-shaped outer configuration to provide for sufficient padding. The spray nozzles located in the sprinkler stations are preferably recessed below the upper surface to further reduce the possibility of injury in the event of a fall.
FIG. 2 is a functional block diagram of sprinkler play apparatus 10. Distribution station 12 has a water inlet 121 to which hose section 22 attaches. The water inlet 121 is in fluid communication with water manifold 122, which has a plurality of outlets 123. The flexible water conduits 16 connect to respective ones of the manifold outlets 123. In this embodiment, distribution station 12 receives electrical power from low voltage supply 24. The power is connected to sprinkler controller 124, which has a plurality of outputs 125 for controlling the individual sprinkler stations. Operation of the sprinkler stations may be manually controlled directly at the distribution station; however, it is desirable that the sprinkler stations be remotely controlled. For this purpose, distribution station 12 includes a remote control receiver module 126 for receiving commands from a portable remote control 30. Communications between the remote control unit 30 and receiver 126 may be via radio frequency (RF) or infrared (IR). Commands are appropriately decoded within receiver module 126 and delivered to controller 124.
Each of sprinkler stations 14 has a water inlet 141 to which a respective flexible water conduit 16 is coupled. Solenoid-operated valve 142 it is normally closed to prevent the discharge or water. When energized by a corresponding output 125, the solenoid-operated valve opens and allows water to be discharged through one or more spray nozzles or orifices 143. Different types of nozzles may be installed in different sprinkler stations to provide a variety of water spray patterns.
The remote control 30 is operated by a parent or one of the children to turn the individual sprinkler stations on and off. Children like to run from one sprinkler station to another as they are turned on. They also like to run around the different stations and guess which sprinkler station will be turned on next. The control unit may include a program that randomly turns the sprinkler stations on and off. The control unit may also include a timer circuit to limit the amount of time that any of the sprinkler stations may be left on.
The play apparatus may include a motion sensor 40 for one or more of the sprinkler stations. This allows the sprinkler station to be optionally activated in response to detected motion, such as a child approaching the station.
FIG. 3 shows a sprinkler spray apparatus 50 in accordance with an alternative embodiment of the invention. In this case, a plurality of spray nozzles 52 are located in a single cone-shaped housing. Here again, a remote control or random program is used to select which of the nozzles water will be sprayed from.
It will be recognized that the above-described invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the disclosure. Thus, it is understood that the invention is not to be limited by the foregoing illustrative details, but rather is to be defined by the appended claims.
Patent Application
20080033601
