Stoves and furnaces – Tool having fluid fuel burner – Curling iron
Patent
1985-01-24
1985-09-10
Green, Randall L.
Stoves and furnaces
Tool having fluid fuel burner
Curling iron
132 37R, A45D 104
Patent
active
045399743
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention concerns a temperature-controlled fuel gas throughflow valve for a catalytic heating device.
2. Description of the Prior Art
With a known hair curler (German Offenleggungschrift No. 20 40 003), the fuel conveyance device is a nozzle situated between the fuel container and the combustion chamber. A stream or flow of gaseous fuel is conducted through this nozzle into the combustion chamber. By means of such an arrangement of the nozzle and of the fuel container, the conveyance quantity of fuel and of oxygen into the combustion chamber is supposed to be controlled in an extremely uniform and precisely dosed fashion.
A catalytic heating device is also known (U.S. Pat. No. 2,997,869), in which the methanol vapor and the air are conducted to a catalyst. Here, the fuel gas flows through a tubular body, at one of whose ends a rod is disposed coaxially with respect to the tubular body, which contains the catalyst. In this way, the rod-shaped body heats up when the catalytic combustion has started.
Finally, a hair curling unit is known (European Patent Application No. 0 021 224), in which a valve device is situated in the housing between the cylindrical rod body and the guide handle. This valve device regulates the outflow of the fuel gas from the fuel gas tank, which is housed in the handle section, to the catalyst, which is situated in the rod body. This regulation here takes place in dependence on a bimetallic element and furthermore in dependence on a positioning member which can be activated manually. This known hair curling unit, according to the type of a curling iron, has the disadvantage that the accuracy of the regulation depends significantly on the quality of the material used for the handle section because, on the one hand, the associated valve device is situated in the handle section and, on the other hand, the bimetallic element is connected with the cylindrical rod body. Experience has shown that the handle section and the rod body shrink or elongate under the influence of temperature and/or humidity. As a consequence, the temperature is not maintained precisely, which can cause damage to the hair.
SUMMARY OF THE INVENTION
The present invention is based on the aim of creating a valve device for a heating apparatus, which permits regulation of the fuel gas throughflow within narrow limits, and where the properties of the materials utilized do not affect the regulation behavior. The valve device should be designed so that it can be installed as an independent component or subassembly both into hair care units as well as into other units for personal needs or for the household, for example pocket ovens, flat irons, or hotplates.
According to the invention, this is achieved by a regulator element situated in a regulator frame. A bimetallic temperature measurement element acts on the regulator element. Said measuring element is directly hinged to the valve member of the valve device, where this valve member is movable and controls the fuel supply from the fuel tank to the combustion chamber. Here, the regulator frame contains the valve element, the mount for the bimetallic temperature measuring element, and the mount for the regulator element. The regulator frame is designed integrally.
U.S. Pat. Nos. 4,374,528; 4,354,482; and 4,382,448 are incorporated herein by reference for purposes of indicating the background of the invention and illustrating the state of the art.
The invention will not be described by way of a particular preferred embodiment (a catalytic hair curling iron), reference being made to the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 shows a curling iron in a side view and in partial section.
FIG. 2 shows the curling iron according to FIG. 1, in a view that has been rotated by 90.degree., likewise partially in section.
FIG. 3 shows the regulation device of the curling iron according to FIGS. 1 and 2 in an enlarged representation in longitudinal section (but without the bimetallic tempera
REFERENCES:
patent: 4327752 (1982-05-01), Hickel
patent: 4354482 (1982-10-01), Beiselker
patent: 4361133 (1982-11-01), Bonnema
patent: 4374528 (1983-02-01), Tittert
patent: 4382448 (1983-05-01), Tittert
Braun Aktiengesellschaft
De Vellis Raymond J.
Green Randall L.
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