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G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
G05D23/00—Control of temperature
G05D23/19—Control of temperature characterised by the use of electric means
G05D23/275—Control of temperature characterised by the use of electric means with sensing element expanding, contracting, or fusing in response to changes of temperature
G05D23/27535—Details of the sensing element
G05D23/27541—Details of the sensing element using expansible solid
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FR681134D1929-01-041929-01-04Régulateur automatique de la température dans les installations de chauffage central par l'eau chaude
ExpiredFR681134A
(fr)
Thermomètre pour déterminer la température de l'eau de chauffage des installations de chauffage à eau chaude suivant la température extérieure du moment