EP 0328457 B1 19920205 - VACUUM SEWAGE TRANSPORT METHOD, VACUUM SEWAGE TRANSPORT SYSTEM AND DELAY CONTROLLING DEVICE FOR USE IN THIS SYSTEM
Title (en)
VACUUM SEWAGE TRANSPORT METHOD, VACUUM SEWAGE TRANSPORT SYSTEM AND DELAY CONTROLLING DEVICE FOR USE IN THIS SYSTEM
Publication
Application
Priority
FR 8801437 A 19880208
Abstract (en)
[origin: EP0328457A1] The vacuum sewage transport system of the invention comprises a vacuum pipe (3), connecting an outlet temporary storage tank (1) to an inlet temporary storage tank (2), a main draining valve (6) actuated by a controlling sensor (7) and providing the transport of the waste products by introducing air at atmospheric pressure into the vacuum pipe (3). It comprises at least one secondary draining valve (9) whose opening is actuated at constant intervals of time by a delay controlling device (10) functioning without supply of energy other than that available in the vacuum pipe (3). The delay controlling device is intended for opening a secondary draining valve (9) of a vacuum sewage transport system characterised in that its source of energy is constituted by the reduced pressure existing in the vacuum pipe (3) and in that it provides this opening at constant time intervals. <IMAGE>
IPC 1-7
IPC 8 full level
CPC (source: EP)
E03F 1/006 (2013.01)
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0328457 A1 19890816; EP 0328457 B1 19920205; AT E72467 T1 19920215; DE 68900805 D1 19920319; FR 2626916 A1 19890811; FR 2626916 B1 19921030
DOCDB simple family (application)
EP 89400360 A 19890208; AT 89400360 T 19890208; DE 68900805 T 19890208; FR 8801437 A 19880208