EP 0000680 B1 19800109 - LEVEL INDICATOR FOR A LIQUID CONTAINED IN A RESERVOIR
Title (en)
LEVEL INDICATOR FOR A LIQUID CONTAINED IN A RESERVOIR
Publication
Application
Priority
FR 7722955 A 19770726
Abstract (en)
[origin: ES472042A1] A level indicator comprises a tubular probe immersed in the liquid to a depth defining the minimum liquid level in the reservoir. The probe communicates with a gas-filled chamber with a heating resistor therein. A warning member is connected to the gas-filled chamber to indicate that the level of the liquid reaches a minimum as indicated by no pressure increase occurring in said chamber.
IPC 1-7
IPC 8 full level
F01M 11/12 (2006.01); F01P 11/18 (2006.01); G01F 23/16 (2006.01); H01H 37/00 (2006.01); G01F 23/14 (2006.01)
CPC (source: EP US)
F01M 11/12 (2013.01 - EP US); G01F 23/168 (2013.01 - EP US); H01H 37/00 (2013.01 - EP US)
Designated contracting state (EPC)
DE GB SE
DOCDB simple family (publication)
EP 0000680 A1 19790207; EP 0000680 B1 19800109; DE 2857517 D1 19800214; ES 472042 A1 19790501; FR 2399010 A1 19790223; FR 2399010 B1 19800404; IT 1097369 B 19850831; IT 7826069 A0 19780725; JP S5424667 A 19790224; US 4204203 A 19800520
DOCDB simple family (application)
EP 78400061 A 19780720; DE 2857517 T 19780720; ES 472042 A 19780726; FR 7722955 A 19770726; IT 2606978 A 19780725; JP 9057578 A 19780726; US 92726578 A 19780721