Global Patent Index - EP 0937830 A3

EP 0937830 A3 2000-02-02 - Vacuum or low-pressure suction system

Title (en)

Vacuum or low-pressure suction system

Title (de)

Vakuum- bzw. Unterdruckabsauganlage

Title (fr)

Système de vidange par aspiration ou évacuation

Publication

EP 0937830 A3 (DE)

Application

EP 99103228 A

Priority

  • DE 19806857 A
  • DE 19829391 A

Abstract (en)

[origin: EP0937830A2] The fluid is feedable to the sub-atmospheric pressure conduit by opening a first suction valve connected to the sewage location. In the sub-atmospheric pressure conduit (18), between the tank and the first suction valve an intermediate tank (10) is arranged, in which a suction pipe (14) leads to the sub-atmospheric conduit for suction of fluid in the intermediate tank. In the intermediate tank is a sensor (40), which dependent upon the fluid collected in the intermediate tank controls a suction valve (20) opening and cutting-off a connection between the sub-atmospheric pressure conduit and the suction pipe. It also controls a connection between the intermediate tank and the atmosphere.

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

E03F 1/00

IPC 8 full level (invention and additional information)

E03F 1/00 (2006.01)

CPC (invention and additional information)

E03F 1/006 (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 0937830 A2 19990825; EP 0937830 A3 20000202

INPADOC legal status


2003-08-13 [18W] WITHDRAWN

- Ref Legal Event Code: 18W

- Effective date: 20030621

2000-10-11 [AKX] PAYMENT OF DESIGNATION FEES

- Ref Legal Event Code: AKX

- Free Format Text: AT CH DE DK ES FR GB IT LI SE

2000-06-28 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000502

2000-02-02 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

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

2000-02-02 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Ref Legal Event Code: AX

- Free Format Text: AL;LT;LV;MK;RO;SI

1999-08-25 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT CH DE DK ES FR GB IT LI SE

1999-08-25 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Ref Legal Event Code: AX

- Free Format Text: AL;LT;LV;MK;RO;SI