US 4,539,974 AGranted

Temperature controlled fuel gas throughflow valve

AssigneeBraun GmbH

InventorCurt Tittert

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Abstract

A hair curling unit, for example a curling iron, which has a catalytically acting heating device, wherein a regulator device is situated between the gas supply chamber which contains the fuel gas and the winding body. The movable valve element (13) of said regulation device is guided in an integrally designed regulator frame (40). Here, the regulator frame also comprises the valve seat (33), the bearing pin (34) for the regulating lever (16), and the spring collet (41) for the bimetallic temperature measuring element. The regulator device, as an independent component, is solidly connected with the handle part which encloses the gas supply chamber. Thus, the material changes which occur during operation--for example the swelling of plastic parts--do not cause any change of the distance between the headpiece of the regulator rod and the valve seat (33).

Claims10

Dependent claims

In a gas powered heating device having a fuel supply chamber and a combustion chamber, an improved thermostatic gas flow control valve, comprising:

a regulator frame disposed between said fuel supply chamber and said combustion chamber and being integrally constructed of a high quality material which will not alter its shape under the influences of temperature and mechanical forces encountered during the operation of the gas powered heating device;
a fuel supply channel provided in said regulator frame;
a movable valve member disposed within said channel for controlling the flow of fuel through said channel dependent upon the positioning of said valve member;
a control member (16) pivotally mounted on said regulator frame, said control member being in contact with said valve member to thereby determine the position of said valve member;
and
temperature response means directly attached to said regulator frame and engaging said control member for pivotally positioning said control in response to the temperature within said combustion chamber;
whereby the position of said thermostatic control valve is only influenced by the positioning of said control member and the temperature of said temperature response means and is substantially independent of temperature related dimensional changes in other components of said heating device.

4 more elements

Dependencies are inferred from the claim text.