Electric resistance heating devices – Heating devices – Vaporizer
Reexamination Certificate
2000-07-25
2001-11-20
Walberg, Teresa (Department: 3742)
Electric resistance heating devices
Heating devices
Vaporizer
C099S330000
Reexamination Certificate
active
06321035
ABSTRACT:
The present invention pertains to a device for instantaneously producing steam.
For obtaining a very good home cleaning are in trade apparatuses producing steam. Such apparatuses comprise a water tank and an electric immersion heater (clad resistor), which when it is turned on, heats the water in the tank and a steam jet comes out from a suitable nozzle and is sprayed on the surface to be cleaned. For heating the immersion heater and the water pool to be transformed in steam, it needs some time and a waste of electric power. All that affects heavily the managing costs of such apparatuses.
Another drawback of such apparatuses is to be compelled to transform all the water contained in the tank in steam and not always the whole produced steam is completely used, so, when it is cooled returns in water. The power consumption for heating and transforming in steam large water quantities is very outstanding.
A further drawback is given by the maintenance of said apparatuses: in fact when the immersion electric heater or clad resistor breaks down or is burned, for its replacement it needs to bring the apparatus to a service centre and such an apparatus is unavailable to the use for some time and the cost of the spare part (the clad resistor) is to be added to the cost of servicing personnel.
Also in steam irons it needs some relatively long time for heating the water therein contained in order to obtain steam.
It is an object of the present invention to obviate the above mentioned drawbacks.
The technical problem to be faced is to provide a device allowing to instantaneously transform water in steam, making it available, and meter the water quantity to be used.
The approach for this technical problem is characterized in that the apparatus comprises a tank containing water, a chamber connected to said tank by means of a duct, a pipe arranged inside the chamber, being provided first means into said pipe for heating said pipe and instantaneously vaporizing the water present in said chamber, and second means to meter the water flow from said tank to said chamber.
Further features and advantages will appear more clearly from the following description and the enclosed drawing, in which: the Figure is a cross section view of the device according to the present invention.
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Brasilia SpA
Fastovsky L.
Griffin & Szipl, P.C.
Walberg Teresa
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