Steam generator

Electric resistance heating devices – Heating devices – Vaporizer

Patent

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Details

F17C 704

Patent

active

055420214

DESCRIPTION:

BRIEF SUMMARY
BACKGROUND OF THE INVENTION

1. Field of the Invention
The present inventions relates to a hand portable steam generator, particularly, though not exclusively, for use in a wallpaper steamer.
2. Description of the Prior Art
Most rooms have a ceiling height just too high for a decorator to reach to the top of the wall or the ceiling for decoration and in particular for stripping wallpaper from it.


SUMMARY OF THE INVENTION

The object of the present invention is to provide a steam generator which is adapted to be stood on so that the decorator can reach the ceiling.
A hand portable steam generator of the invention comprises a boiler mounted within a framework, the framework being adapted to be stood on.
Preferably the framework has a stepping board mounted at its top for standing on.
The preferred framework comprises a pair of generally planar frames, which are interconnected by spacing members. Two spacing members at a top side of the frames provide support for the step and two spacing members at a bottom side of the frames support the boiler.
Preferably, the frames are of metal tube, one end of the tube of each frame being tucked in the other end of the tube and the ends being arranged between the bottom spacing members, the arrangement being such that securement of the boiler to the bottom spacing members prevents the tucked joints opening.
Preferably, the boiler is a section piece casting of light alloy, with a socket-and-spigot joint, secured by adhesive. Additional mechanical securement may be provided.
Normally the steam generator will be supplied in combination with a steam plate having an apertured steam dispersion tube extending on the underside of the steam plate from a steam hose connection fitting.
To help understanding of the invention, a specific embodiment thereof will now be described with reference to the accompanying drawings, in which;


BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a side view of a steam generator of the invention,
FIG. 2 is a cross-sectional end view on the line II--II of the steam generator of FIG. 1,
FIG. 3 is a cross-sectional side view on the line III--III of the boiler of the steam generator,
FIG. 4 is a cross-sectional side view of a steam plate for use with the steam generator.


DESCRIPTION OF THE BEST MODE OF THE INVENTION

The hand portable steam generator shown in the drawings has a high-pressure aluminium die cast boiler 1. The boiler 1 has two sections 2,3. Section 3 has a socket 4 (as shown in FIG. 3) at its open end; whilst section 2 has a spigot open end 5. The spigot end 5 is received in the socket end 4 and fixed there by a silicone sealing adhesive, which secures the two sections together in a pressure-tight manner. As added mechanical security against bursting of the boiler at this adhesive joint, the two sections are provided with ribs 6,7 adjacent their ends. A shallow U-section steel band 8 surrounds the joint and engages the two sections 2,3 with its flanges 9. The band is tightened by a screw fitting 11, beneath the boiler.
The section 2 has a recess 12 in its closed end for accommodating the end fitting 13 of an electrical heating element 14 for boiling water in the boiler. At the recess, three bosses 15--of which two only are visible in FIG. 3 --extend inwardly from the recess 12. The bosses are centred around an opening 16, through which the heating element extends. The fitting has an integral flange 17, which is apertured for three threaded rods 18. The latter are received in blind threaded bores 19 in the bosses 15. Nuts 20 on the rods 18 captivate an O-ring 21 between the boiler section and the flange 17, whereby the boiler is sealed at the element, the bores 18 being blind. A plastics material cover 22 conceals the recess 12. The cover is secured by further nuts 23 on the ends of the rods. An electrical supply switch 24 is mounted on the cover 22. Electrical connections to a supply cable 25 are made within the cover.
At an angled top end portion 26, the boiler section 3 has a filling port 27, which is adapted to receive an automotive rad

REFERENCES:
patent: 310276 (1885-01-01), Hayes
patent: 444693 (1891-01-01), Creque
patent: 1114404 (1914-10-01), Smith
patent: 2060638 (1936-11-01), Schlosser
patent: 2572317 (1951-10-01), Chausse
patent: 2627055 (1953-01-01), Hackman
patent: 2880300 (1959-03-01), Reimers
patent: 2886689 (1959-05-01), Garth
patent: 3025381 (1962-04-01), Pickering
patent: 3291964 (1966-12-01), Williams
patent: 3472455 (1969-10-01), Johnson
patent: 3793753 (1974-02-01), Engelbart
patent: 4494485 (1985-01-01), Kendall
patent: 5305415 (1994-04-01), Stevens
Foreign Abstract Search.

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