EP 0342356 A1 19891123 - A thermostat safety device.
Title (en)
A thermostat safety device.
Title (de)
Thermostat mit Sicherheitseinrichtung.
Title (fr)
Thermostat avec dispositif de sécurité.
Publication
Application
Priority
IT 4572888 A 19880516
Abstract (en)
A safety device for a thermostat to be used in washing machines, dish washers or similar electric household appliances and adapted to regulate the heating temperature of the water. The device comprises an elastically deformable bellows (24) to be moved by the expansion of the liquid contained in the capillary tube (11) and in the temperature sensor (12) of the thermostat, in accordance with the variations of the heating temperature of the water. Said bellows (24) acts, through a rigid arm (19) and an antagonistic spring (20), against an electric swtich (16) connected to the heating element (9) of the machine, in series with the thermostatic switch (8) to be actuated by a corresponding bellows (4) of the thermostat. In this way, if the thermostat ceases functioning the bellows (24) causes the switch (16) to open, thereby switching off the heating element (9) and avoiding dangerous overheating of the machine.
IPC 1-7
IPC 8 full level
D06F 39/04 (2006.01); H01H 35/26 (2006.01)
CPC (source: EP US)
D06F 34/24 (2020.02 - EP US); H01H 35/2671 (2013.01 - EP US); D06F 2103/16 (2020.02 - EP US)
Citation (search report)
- [X] DE 2111066 A1 19720914 - BOSCH HAUSGERAETE GMBH
- [X] DE 1673472 A1 19711007 - EBERLE WERKE KG
- [X] DE 2005763 A1 19710826 - HARDER P
- [A] US 4596361 A 19860624 - THEISS JOHN J [US], et al
- [A] FR 2290592 A1 19760604 - DANFOSS AS [DK]
- [A] FR 2304954 A1 19761015 - PROD APPLIC GAZ ELECTRICITE [FR]
- [A] DE 8204097 U1 19820701
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
EP 0342356 A1 19891123; IT 1220752 B 19900621; IT 8845728 A0 19880516
DOCDB simple family (application)
EP 89106533 A 19890412; IT 4572888 A 19880516