EP 0100758 A3 19840606 - A SAFETY DEVICE FOR GAS HEATING APPARATUS
Title (en)
A SAFETY DEVICE FOR GAS HEATING APPARATUS
Publication
Application
Priority
- IT 2272182 A 19820803
- IT 2423482 A 19821112
Abstract (en)
[origin: EP0100758A2] A safety device for gas heating apparatus, is provided which is responsive to a reduction in the oxygen content in the environment in which the apparatus is located, to close a main solenoid valve (3) controlling the gas supply. The device includes a temperature transducer the temperature sensitive element (13) of which is fixed to the outside of the wall (16) of a pilot burner tube (2) to detect its temperature. In dependence on the detected temperature, the transducer generates a signal which, when the pilot flame burns in a first position (A) in the pilot burner tube (2), corresponding to normal environmental conditions, maintains the gas-supply solenoid valve (5) open and which on the other hand causes the latter to close when the pilot flame burns in a second position (B) as a result of its displacement due to a lowering of the oxygen content in the environment.
IPC 1-7
IPC 8 full level
F23N 5/00 (2006.01); F23N 5/10 (2006.01); F23Q 9/00 (2006.01); F23N 5/14 (2006.01)
CPC (source: EP)
F23N 5/006 (2013.01); F23N 5/102 (2013.01); F23Q 9/00 (2013.01); F23N 5/10 (2013.01); F23N 5/14 (2013.01); F23N 2223/16 (2020.01); F23N 2227/22 (2020.01); F23N 2227/36 (2020.01); F23N 2229/02 (2020.01); F23N 2235/14 (2020.01)
Citation (search report)
- [YD] US 3295585 A 19670103 - KOVACH JR JOHN T, et al
- [Y] GB 1145077 A 19690312 - HONEYWELL INC
- [Y] GB 2081905 A 19820224 - MITSUBISHI ELECTRIC CORP
- [X] FR 1237754 A 19600805 - KROMSCHROEDER AG G
- [A] US 2430887 A 19471118 - RAY WILLIAM A
- [A] GB 2021253 A 19791128 - STRAITZ J F
- [A] FR 1182023 A 19590622 - ROBERTSHAW FULTON CONTROLS CO
- [A] FR 2028564 A1 19701009 - MARCOERQUEAGA IRIONDO
Designated contracting state (EPC)
AT BE CH DE FR GB LI LU NL SE
DOCDB simple family (publication)
EP 0100758 A2 19840215; EP 0100758 A3 19840606; ES 523432 A0 19840601; ES 8405127 A1 19840601
DOCDB simple family (application)
EP 83830161 A 19830803; ES 523432 A 19830620