Global Patent Index - EP 1077352 A3

EP 1077352 A3 2002-12-18 - Protection device for hot water storage

Title (en)

Protection device for hot water storage

Title (de)

Schutzvorrichtung für Warmwasserspeicher

Title (fr)

Dispositif de protection pour accumulateur d'eau chaude

Publication

EP 1077352 A3 (DE)

Application

EP 00116822 A

Priority

DE 19939134 A

Abstract (en)

[origin: EP1077352A2] The device has a measurement anode (40) protruding into the storage vol. that is supplied with external current and connected to evaluation electronics (44). The evaluation electronics are connected to a controller (32) for the tank heater and if the anode current is not present a blocking signal is transmitted to the controller to positively prevent operation of the tank heater (16).

IPC 1-7 (main, further and additional classification)

F24H 9/20; C23F 13/04

IPC 8 full level (invention and additional information)

F24H 9/20 (2006.01); F24H 1/18 (2006.01); F24H 9/00 (2006.01)

CPC (invention and additional information)

F24H 9/0047 (2013.01); F24H 9/2007 (2013.01); F24H 1/18 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 1077352 A2 20010221; EP 1077352 A3 20021218; DE 19939134 C1 20010315

INPADOC legal status


2005-09-21 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20050322

2004-12-29 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20041111

2003-09-10 [AKX] PAYMENT OF DESIGNATION FEES

- Designated State(s): DE ES FR GB IT NL

2003-08-20 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20030618

2002-12-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A3

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2002-12-18 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI

2002-12-18 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7F 24H 9/20 A, 7C 23F 13/04 B

2001-02-21 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2001-02-21 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI