Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1991-02-13
1992-06-30
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15353, 55218, 55227, 55242, 55255, 55256, 55271, 55431, 55472, 55DIG8, B01D 4702
Patent
active
051251256
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a central vacuum cleaning system with a complete, automatic water-flush double-rinse cleaning-evacuation system.
BACKGROUND
French Patent FR-A-2,593,081 teaches a central vacuum system composed of a housing comprising at its upper part a compartment accommodating a vacuum system and in its lower part a supply of water, called wash water, whose level touches the opening of a drain line in which a flexible shutoff sleeve valve is mounted controlled by a pressurized water source, and a dip tube immersed in said water supply and connected outside the housing and by a network of fixed pipes to intake openings located in the areas or rooms of a building for residential or other use, the central part of said housing also comprising means for generating the flushing action.
These means are composed of an annular perforated duct located in the central part of the housing, said duct pointing toward the water supply and connected to a pressurized water line that also controls said flexible shutoff sleeve valve.
SUMMARY OF INVENTION
The goal of the present invention is to improve a system of this kind by improving the water flushing action and adding to it a final rinsing device to improve the efficiency of the vacuuming and the cleaning of the inside of the housing.
To this end, the goal of the invention is to provide a central vacuum cleaning system consisting of a housing comprising in the upper part a compartment wherein a vacuum system is accommodated and in the lower part both a supply of water called wash water whose level touches the opening of a drain line wherein a flexible shutoff sleeve valve is located, controlled by a source of pressurized water, and a dip tube immersed in said supply of water and connected outside the housing and through a network of fixed pipes to intake openings located in the areas or rooms of a building for residential or other use. The central part of said housing also comprises means for generating the flushing action characterized by the flush generating means being composed of a water inlet at the lower end of the housing, connected by a pipe to said source of pressurized water and wherein a solenoid valve is located, as well as a stopcock and a needle valve controlled by a float located inside the housing, above the water supply. The house is also provided with a double rinsing system comprising firstly an annular diffuser directed towards said water supply and secondly of a diffuser for sprinkling a dust filter located between said compartment of the vacuum system and said annular diffuser, with the annular and sprinkler diffusers being connected to said source of pressurized water through a pipe provided with a solenoid valve, and by the timed control circuits connected to said solenoid valves being designed to trigger the following cycle: closing of the flexible sleeve valve, filling of the housing at the end of an adjustable preset time, draining of the housing accompanied by rinsing of the lower part of the housing and the dust filter.
BRIEF DESCRIPTION OF THE DRAWINGS
Other characteristics and advantages will emerge from the following description of embodiments of devices according to the invention, with the description being provided solely as an example and with reference to the attached drawings wherein:
FIG. 1 is a vertical section through a device according to the invention in the resting state;
FIGS. 2 to 5 show various phases of the operation of the device;
FIG. 6 shows the electrical schematic of the device, and
FIG. 7 is a vertical section through an industrial version of the device in FIG. 1.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
The device shown schematically in FIG. 1 comprises an essentially cylindrical dust-removing unit and comprises a hollow central body 1 surmounted by a housing 2 enclosing the assembly composed of motor 3 and turbine 4 and integral at its lower part with a bowl 5 with a hemispherical end blocked by a drain plug 6.
Body 1 is comprised of a closed housing 7 communicating
REFERENCES:
patent: 2673619 (1954-03-01), Martin
patent: 3173164 (1965-03-01), Congdon
patent: 3318075 (1967-05-01), Wilson
patent: 4312646 (1982-01-01), Fattinger et al.
patent: 4375976 (1983-03-01), Potter
patent: 4553991 (1985-11-01), Barsacq
patent: 4721516 (1988-01-01), Barsacq
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