EP 0328309 A1 19890816 - Water heaters.
Title (en)
Water heaters.
Title (de)
Wassererhitzer.
Title (fr)
Réchauffeur d'eau.
Publication
Application
Priority
GB 8803047 A 19880210
Abstract (en)
A gas water heater incorporating a valve (h) for controlling the flow of gas to a burner (b) which is arranged to heat a heat exchanger (a) through which the water is fed, and monitoring means for causing the valve to close when the rate of flow of water through the heat exchanger falls below a predetermined value.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
F24H 9/2035 (2013.01 - EP US); F24H 15/219 (2022.01 - EP US); F24H 15/238 (2022.01 - EP US); F24H 15/242 (2022.01 - EP US); F24H 15/31 (2022.01 - EP US); F24H 15/335 (2022.01 - EP US); F24H 15/36 (2022.01 - EP US)
Citation (search report)
- [X] BE 531309 A
- [A] FR 2415269 A1 19790817 - LEBLANC SA E L M [FR]
- [A] CH 376630 A 19640415 - RADIATION LTD [GB]
- [A] PATENT ABSTRACTS OF JAPAN, vol. 9, no. 11 (M-351)[1734], 18th January 1985, page 31 M 351; & JP-A-59 158 932 (MATSUSHITA DENKI SANGYO K.K.) 08-09-1984
Designated contracting state (EPC)
AT BE CH DE FR IT LI LU NL SE
DOCDB simple family (publication)
EP 0328309 A1 19890816; AU 2953789 A 19890810; DK 49589 A 19890811; DK 49589 D0 19890202; FI 890632 A0 19890209; FI 890632 A 19890811; GB 2215824 A 19890927; GB 8803047 D0 19880309; GB 8902403 D0 19890322; JP H01247951 A 19891003; NO 890555 D0 19890209; NO 890555 L 19890811
DOCDB simple family (application)
EP 89301040 A 19890203; AU 2953789 A 19890202; DK 49589 A 19890202; FI 890632 A 19890209; GB 8803047 A 19880210; GB 8902403 A 19890203; JP 2880289 A 19890209; NO 890555 A 19890209