Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1999-10-28
2000-08-08
Paik, Sang
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
2194651, H05B 368
Patent
active
06100507&
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a table top model hot plate or warming plate appliance comprising a vitreous ceramic top mounted on a body, including peripheral side walls and enclosing one or more heating elements underneath the vitreous ceramic top, the side walls of the appliance being upright, and terminating in formations, supporting and positioning edges of said vitreous ceramic top which has substantially circular to oval outlines.
BACKGROUND OF THE INVENTION
Swiss patent specification CH 654646 A5 discloses a hot plate having ovaloid or ellipsoidal outlines in plan view European patent application 0223966 A1 discloses a vitreous ceramic hot plate having circular outlines which according to the description, may also be ovaloid. In both cases the control means such as switches, temperature regulating apparatus and the like project from the side of the appliance without in any way having been integrated functionally, or design wise into the overall design and construction of the body of the appliance. They create the impression of having been added on by sheer necessity virtually as an afterthought and no attempt has been made to create a cavity for accommodating these control means in a manner which is both functionally integrated into the overall design of the housing as well as providing an aesthetically pleasing overall design concept.
Accordingly, there exists a need for appliances of the type set out above which overcome these criticisms and which provide accommodation for the control apparatus for such hot or heating plates, satisfactorily functionally separated from the radiating heating elements and yet neatly stowed away within the outlines of the body of the appliance.
SUMMARY OF THE INVENTION
In accordance with the invention, there is provided a table top model hot plate or warming plate appliance of the type aforesaid wherein the side walls of the appliance have circular to oval outlines in plan view, substantially following vitreous ceramic top except for a hollow protrusion forming a substantially planar control panel surface which on one side merges substantially tangentially with the circular to oval outlines of the said side walls and on the other side terminates in a corner-forming wall, returning to meet the side walls having circular to oval outlines, the hollow protrusion forming a box-like cavity accommodating control apparatus for the heating elements and the control panel carrying one or more operating and/or control buttons, touch pads, knobs and/or dials and optionally one or more pilot lights.
In a preferred embodiment the corner forming wall is at a right angle to the control panel. Preferably the corner-forming wall meets the circular to oval outlines in non-tangential relationship.
In a particularly preferred embodiment the plan view outlines of the side walls are defined at one end by a hemicircle, its two hemicircle ends merging tangentially with two parallel straight lines one of which in turn merges tangentially with the first end of a further circle segment, whereas the other continues rectilinearly to form the control panel, terminating at its far end in said corner forming wall which latter meets the second end of said further circle segment. More particularly the outside of the corner-forming wall meets the outside of the further circle segment at an obtuse angle.
Preferably the heating elements comprise a first element having circular outlines and a second element having moon crescent-shaped outlines adjoining the first element.
BRIEF DESCRIPTION OF THE DRAWINGS
In the following the invention will be further described by way of example with reference to the accompanying drawings.
In the drawings FIG. 1 represents a perspective view of an embodiment of a table top model hot plate or warming plate appliance according to the invention.
FIG. 2 represents a plan view of the apparatus illustrated in FIG. 1.
FIG. 3 represents a front elevation of the apparatus shown in FIGS. 1 and 2 and
FIG. 4 represents a vertical section along line I
REFERENCES:
patent: 2306979 (1942-12-01), Potsdam
patent: 2563875 (1951-04-01), Salton
patent: 2715173 (1955-08-01), Farquharson
patent: 5508495 (1996-04-01), Yahav et al.
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