EP 0436357 B1 19940921 - Vacuum sewer arrangement.
Title (en)
Vacuum sewer arrangement.
Title (de)
Vakuum-Abwasservorrichtung.
Title (fr)
Système d'assainissement sous vide pour eaux usées.
Publication
Application
Priority
US 46036090 A 19900102
Abstract (en)
[origin: EP0436357A1] A vacuum sewer arrangement comprises a bowl (1) connected to a sewer pipe (2) provided with means for establishing, in the sewer pipe (2), a vacuum sufficient for obtaining efficient sewage transport. There is a normally-closed sewer valve (3) connecting the bowl (1) to the sewer pipe (2) and a control device (7) for controlling operation of the sewer valve (3) to allow discharge of sewage from the bowl (1) to the sewer pipe (2). There is also an air inlet duct (4) for letting air into the sewer pipe (2) separately from the bowl (1). For controlling flow of air through the air inlet duct (4) into the sewer pipe (2), when the sewer pipe (2) is under proper vacuum for effective sewage transport, there is an air inlet valve (6) with means operating it in response to pressure variations in the sewer pipe (2). Such pressure variations occur when the sewage discharged from the bowl (1) has passed the point (36) where the air inlet duct (4) is connected to the sewer pipe (2). This ensures that the air inlet valve (6) operates accurately and securely. <IMAGE>
IPC 1-7
IPC 8 full level
E03C 1/122 (2006.01); E03D 11/00 (2006.01); E03F 1/00 (2006.01); F16L 55/02 (2006.01)
CPC (source: EP KR)
E03D 5/00 (2013.01 - KR); E03F 1/006 (2013.01 - EP)
Designated contracting state (EPC)
DE DK ES FR GB GR IT NL
DOCDB simple family (publication)
EP 0436357 A1 19910710; EP 0436357 B1 19940921; AU 634008 B2 19930211; AU 6852790 A 19910704; CA 2032882 A1 19910703; CA 2032882 C 20000822; DE 69012773 D1 19941027; DE 69012773 T2 19950209; DK 0436357 T5 19951106; ES 2062422 T3 19941216; FI 910027 A0 19910102; FI 910027 A 19910703; FI 92085 B 19940615; FI 92085 C 19940926; JP 3040493 B2 20000515; JP H0438336 A 19920207; KR 0148792 B1 19981015; KR 910014571 A 19910831; NO 315093 B1 20030707; NO 905623 D0 19901228; NO 905623 L 19910703
DOCDB simple family (application)
EP 90313991 A 19901220; AU 6852790 A 19901228; CA 2032882 A 19901220; DE 69012773 T 19901220; DK 90313991 T 19901220; ES 90313991 T 19901220; FI 910027 A 19910102; JP 40830790 A 19901227; KR 900022754 A 19901231; NO 905623 A 19901228