Brushing – scrubbing – and general cleaning – Submerged cleaners with ambient flow guides
Patent
1985-02-11
1987-03-17
Roberts, Edward L.
Brushing, scrubbing, and general cleaning
Submerged cleaners with ambient flow guides
E04H 320
Patent
active
046495894
DESCRIPTION:
BRIEF SUMMARY
This invention relates to a pool cleaner.
Over a period of time a substantial amount of debris such as leaves from nearby trees, accumulates in swimming pools. The debris is not only unsightly but is also detrimental to pool cleanliness and should therefore be removed regularly. Some debris floats to the surface of the pool and can be fairly readily collected therefrom by known methods. However, other debris sinks to the floor of the pool and cannot be readily recovered, except by using complex and expensive suction devices connectable to the pool filtration system.
It is an object of this invention to provide a simple but effective means for removing debris from floors of pools, which may also be used for removing debris from surfaces of pools.
In one form the invention resides in a pool cleaner comprising: a hollow body having a first inlet end, a second outlet and an intake portion; the intake portion including a roof, a pair of side walls depending from the roof, an open front providing said first inlet end, and an open bottom; coupling means for coupling a handle to the body; and a water-previous collection receptacle mountable on the body about the outlet end thereof.
Preferably, the intake portion of the body tapers inwardly from the inlet end.
Preferably, the body includes an outlet portion extending upwardly and rearwardly of the intake portion adjacent the rear end thereof and terminating in said outlet end, said outlet portion providing a wall at the rear end of the intake portion. The outlet portion preferably opens into the intake portion at the rear end thereof and at a portion of the roof thereof adjacent the rear end.
The coupling means preferably incorporates a pivotal joint to permit relative movement between the handle and the body. It is preferred that the pivotal joint be in the form of a universal joint, so as to permit relative pivotal movement in all directions between the handle and the body.
Preferably a locking means is provided for selectively locking the handle and the body against said relative movement.
The invention will be better understood by reference to the following description of several specific embodiments thereof, as shown in the accompanying drawings in which:
FIG. 1 is a side elevational view of a pool cleaner according to the first embodiment;
FIG. 2 is a front elevational view of the pool cleaner of FIG. 1;
FIG. 3 is a plan view of the pool cleaner of FIG. 1;
FIG. 4 is a central longitudinal sectional elevation of the pool cleaner of FIG. 1, with the collection receptacle omitted; and
FIG. 5 is a fragmentary side elevational view of a pool cleaner according to the second embodiment.
Referring to FIGS. 1 to 4 of the drawings, the pool cleaner according to the first embodiment comprises a hollow body 10 having a first inlet end 12, a second outlet end 14, an intake portion 16 and an outlet portion 18.
A passage 20, which exists because of the hollow nature of the body, extends through the body between the inlet end 12 and outlet end 14.
The intake portion 16 has a roof 22, a pair of side walls 24 depending from the roof, an open front providing said first inlet end 12, and an open bottom (i.e. no floor). At the lowermost edge of each side wall 24 there is an inturned flange providing a runner 26 which facilitates sliding movement of the body along the floor of a swimming pool, in a manner to be described hereinafter.
The intake portion 16 of the body tapers inwardly from the inlet end 12, as can be best seen in FIG. 3 of the drawings. It is described that the inlet end 12 of the intake portion of the body has a flow area which is not too great in relation to the flow area of the smallest section of the outlet portion 18; for preference, the two flow areas are approximately equal. If the flow area of the smallest section of the outlet portion is too small in relation to that of the inlet end, then water may be prevented, in use, from entering the intake portion. This in turn may impede normal flow of debris through the body (as will be described hereinafter).
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REFERENCES:
patent: 2769549 (1956-11-01), Bixby
patent: 2902705 (1959-09-01), Eistrup
patent: 4053412 (1977-10-01), Stix
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