Title:
真空下水道システム
Document Type and Number:
Japanese Patent JP4740958
Kind Code:
B2
Abstract:
Vacuum sewer system comprising a source of sewage (101), sewer piping (102), a discharge valve (103) between the source of sewage and the sewer piping, means (104) for generating partial vacuum in the sewer piping, and a control means for controlling the operation of the discharge valve. The control means comprises a control mechanism (105) with a body part defining a series of chambers including a first end chamber and a second end chamber, wherein the first end chambers is provided with an activating means (106). The body part (12) is provided with a first port (8) for communication with a source of vacuum (102), a second port (9) for communication with the discharge valve (103) and a third port (10) for communication with an aeration means. The activating means (106) is in connection with a first valve means operating in cooperation with a second valve means, which is displaceable between a first position, providing communication between the second port (9) and the third port (10), and a second position, closing the communication between the second port (9) and the third port (10).
Inventors:
Lindruth, Gunnar
Application Number:
JP2007551693A
Publication Date:
August 03, 2011
Filing Date:
January 23, 2006
Export Citation:
Assignee:
Evac International Osuke Yukichia
International Classes:
E03F7/00; E03F1/00; E03F
Domestic Patent References:
| JP2004530819A | ||||
| JP2003034963A | ||||
| JP2000192530A |
Foreign References:
| EP0659947A2 | ||||
| GB2247327A | ||||
| US5326069 |
Attorney, Agent or Firm:
Hideto Asamura
Hajime Asamura
Toru Mori
Yutaka Yoshida
Hajime Asamura
Toru Mori
Yutaka Yoshida