Global Patent Index - EP 1022758 A3

EP 1022758 A3 2001-05-02 - Vacuum switch

Title (en)

Vacuum switch

Title (de)

Vakuumschaltröhre

Title (fr)

Interrupteur à vide

Publication

EP 1022758 A3 (DE)

Application

EP 00100945 A

Priority

DE 19902498 A

Abstract (en)

[origin: EP1022758A2] To improve the rated current and to remove heat from the surface of the contacts, the surface area of at least one contact carrier is enlarged by forming a hole (201) that is exposed to atmospheric pressure. The hole is aligned axially with the end of the contact carrier that extends out of the vacuum switch chamber.

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

H01H 33/66; H01H 1/62; H01H 9/52

IPC 8 full level (invention and additional information)

H01H 1/62 (2006.01); H01H 33/66 (2006.01); H01H 9/52 (2006.01)

CPC (invention and additional information)

H01H 1/62 (2013.01); H01H 33/6606 (2013.01); H01H 9/52 (2013.01); H01H 33/66207 (2013.01); H01H 2009/523 (2013.01); H01H 2009/526 (2013.01); H01H 2033/6613 (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 1022758 A2 20000726; EP 1022758 A3 20010502; DE 19902498 A1 20000907; DE 19902498 C2 20010517

INPADOC legal status


2005-06-15 [18W] WITHDRAWN

- Effective date: 20050422

2005-02-09 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20041223

2002-01-23 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: DE FR GB

2002-01-02 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20011031

2001-05-02 [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

2001-05-02 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

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

2000-07-26 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): DE FR GB

2000-07-26 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

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