Displacement apparatus for submerged cleaner
OwnerDaniel J. V. D. Chauvier, Peter Woodmaninventors
Life of this patent
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Abstract
Submersible displacement apparatus 10 for periodically displacing a submersible suction cleaner connected to a suction source by a suction hose is disclosed. The apparatus 10 comprises a body 11 defining two converging flow passages 12 and 16 therethrough. Flow passage 16 is connectable in the hose with outlet 14 communicating with the source. Flow passage 12 at its inlet has a valve 17 for periodically opening and closing that passage. An actuation mechanism driven by water wheel 28 is provided for opening and closing valve 17. An impeller is rotatably mounted in passage 12 to drive propeller 20 when water is admitted through valve 17 thereby periodically to exert a displacement force on the body and therefore also on the suction cleaner.
Claims7
Apparatus for intermittently displacing a device submersible in a liquid, comprising:
- a body adapted to be connected directly or indirectly to the device;
- the body defining first and second flow passages therethrough;
- the first flow passage extending between a first inlet to the body and an outlet therefrom;
- the second flow passage extending between a second inlet to the body and the said outlet;
- the second inlet being adapted to communicate with the device and the outlet being adapted to be connected to a suction source so that suction is transmitted via the body and the second inlet to the device;
- drive means adapted to exert a displacement force on the body and therefore on the device in response to liquid flow through the first flow passage;
- a valve assembly for the first flow passage for intermittently opening and closing the first flow passage to intermittently allow and interrupt liquid flow through the first flow passage;
- and
- actuating means for operating the valve assembly which actuating means is driven by liquid flow through the body;
- the arrangement being such that, in use, when liquid is flowing through the first flow passage, the drive means is operative to exert a displacement force on the body and therefore on the device, and, when liquid flow through the first flow passage is interrupted, the drive means is rendered completely inoperative and no displacement force is then exerted on the body.
Dependencies are inferred from the claim text.