Claims
- 1. An apparatus for producing a water current in a swimming pool which comprises an outer housing which is adapted to be mounted in the wall of a swimming pool, said outer housing being provided with a suction nipple and a pressure nipple, a housing insert disposed within the outer housing, said housing insert having a side wall which defines an annular intake space between the outer housing and the interior of the housing insert, partition means associated with the housing insert, said partition means subdividing the interior of said housing insert into a pressure chamber and a suction chamber having a front side and lateral side, a pump means having a pressure side and a suction side which communicates with the pressure chamber and the suction chamber, respectively, said pressure chamber containing a front wall, at least one nozzle means disposed in said front wall, said suction chamber containing open sections in the lateral side thereof, said pressure chamber being disposed between the pressure nipple and the nozzle means, said suction chamber being disposed between the suction nipple and the annular intake space, said annular intake space communicating with the interior of the swimming pool and the suction chamber by means of an intake opening disposed in the side wall of the suction chamber, the through-flow cross section of the intake opening being sufficiently large to produce a low velocity in the intake flow so that no significant suction power exists.
- 2. The apparatus of claim 1, wherein the housing is substantially cylindrical and the annular intake space is limited on the side opposite the swimming pool by an inner shoulder provided in the outer housing.
- 3. The apparatus of claim 2, wherein on the swimming pool side the outer housing ends in a terminal rim and the housing insert is seated within the interior of the outer housing such that the mouth of the nozzle projecting from the housing insert is in the same plane as said terminal rim.
- 4. The apparatus of claim 3, wherein handle means are attached to the outer housing rim in the swimming pool.
- 5. The apparatus of claim 2, wherein the suction chamber is defined by the partition means and a web means which contains open sections, said web means extending into a web wall means lying in the side wall plane of the housing insert, said web wall terminating in a flange which is adapted to be attached to the inner shoulder of the outer housing.
- 6. The apparatus of claim 1, wherein means are provided for infinitely varying the cross section of the orifice of the pressure nipple in a location where said pressure nipple communicates with the pressure chamber, said means being unable to completely close said orifice.
- 7. The apparatus of claim 6, wherein the means for infinitely varying the cross section of the orifice is a plate means which is disposed opposite to the orifice of the pressure nipple and adjusting means for varying the distance of the plate means from the orifice, said adjusting means comprising a threaded rod containing an adjusting knob mounted in the front wall of the outer housing and extending through an opening in the cover plate means.
- 8. The apparatus of claim 7, wherein the pressure chamber is larger than the suction chamber.
- 9. The apparatus of claim 8, wherein two spaced-apart nozzle means are utilized and wherein means are provided for selectively actuating the nozzle means either individually or together.
- 10. The apparatus of claim 9, wherein compressed air line means communicate with said nozzle means, said compressed air line means sealingly extending through the pressure chamber.
- 11. The apparatus of claim 1, wherein a cover plate means surrounds the nozzle means and is spaced apart from the front wall of the housing insert, said cover plate means also covering the open sections of the suction chamber on both sides of the web means.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2209056 |
Feb 1972 |
DT |
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BACKGROUND OF THE INVENTION
This is a continuation-in-part application of application Ser. No. 279,073, filed Aug. 9, 1972 and now abandoned.
US Referenced Citations (4)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
279073 |
Aug 1972 |
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