Brushing – scrubbing – and general cleaning – Submerged cleaners with ambient flow guides
Patent
1987-04-06
1989-06-06
Roberts, Edward L.
Brushing, scrubbing, and general cleaning
Submerged cleaners with ambient flow guides
E04H 320
Patent
active
048358096
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an apparatus having automatic displacement capable of cleaning by aspiration in particular the bottom of a swimming pool or the like.
The cleaning of a swimming pool consists of removing the deposits which occur essentially on the bottom.
2. Background and Discussion of Relevant Information
This operation is performed most often, manually by means of a sweep connected to the general aspiration of the swimming pool.
This operation which must be performed once per week quickly becomes a chore which explains the value of automatic cleaning apparatus and their development despite an expensive price.
The available automatic apparatus on the market are classified in two major categories: agitators and aspirators.
The agitators are sorts of octopuses which are animated by a recycling of pressurized water.
Their role is to resuspend in the water the deposits which have occurred. The materials in suspension are then eliminated by the general filtration system of the swimming pool.
The aspirators are apparatus with automatic displacement on the bottom and if desired the walls of the pool, which are, either connected to the general aspiration by a floating pipe or a superpressurizer, or electrically controlled by an on board propulsive set programmed if desired.
The majority of displacement systems of these apparatus rely upon a sophisticated mechanism (turbines, gears, submerged pump, motor-reducer, end of path contacts) of an elevated manufacture and maintenance cost.
SUMMARY OF THE INVENTION
The present invention attempts to overcome these disadvantages and its aim is to provide an automatic operation apparatus, of simple design and utilizing the hydraulic energy of the recycling of the water of the swimming pool to assure the aspiration of the deposits and the propulsion of the apparatus.
To this end, the invention has as object an apparatus for the automatic cleaning particularly of the bottom of a swimming pool or the like, characterized in that it comprises an aspiration container in the general form of a flattened cylinder of vertical axis provided with a removable bottom defining therewith an aspiration orifice or mouth situated in a plane substantially parallel to the surface to be cleaned and at a small distance therefrom, and an outlet orifice of aspirated water, a filter positioned in the container between the said aspiration orifice and the said water outlet orifice, a means integral with the container adapted to aspirate the water of the container and to send it into a pipe carried by the container and oriented substantially parallel to the plane of the surface to be cleaned and a deflector wing attached to the container, the axis of the propulsive jet of the pipe being laterally offset with respect to the vertical axis of the container and cutting the plane of the deflector wing.
Such an apparatus is of the type to displace itself along the bottom of a pool by reaction along a straight line defined by the resultant of the propulsive force of the jet of the pipe and the braking force of the deflector wing, then, upon contact with a lateral wall of the swimming pool, to pivot to start again along another direction and to repeat the same pivoting against another wall, the apparatus displacing itself thus in the manner of a billiard ball return by the edges and finishing by passing over the entire surface of the bottom and thus completely cleaning it.
The water and the impurities and various debris covering the bottom are thus aspirated into the container, th impurities and debris are filtered and the water aspirated is ejected by the propulsive pipe.
The apparatus rests on the bottom by means of swivelling wheels and/or a brush positioned in a cordon adjacent to the said water aspiration orifice.
The propulsion means of the container can be an apparatus known as a hydro-injector and comprising a water injection inlet orifice connected by a flexbile pipe to a recycle mouth or the like of the swimming pool, a water a
REFERENCES:
patent: 2988762 (1961-06-01), Babcock
patent: 3008159 (1961-11-01), Del Vecchio
patent: 3108298 (1963-10-01), Gelinas
patent: 3229315 (1966-01-01), Watson
patent: 3979788 (1976-09-01), Strausak
patent: 4023581 (1977-05-01), Pansini et al.
patent: 4100641 (1978-07-01), Parsini
patent: 4141101 (1979-02-01), Gibellina
patent: 4558479 (1985-12-01), Greskovics
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