-
公开(公告)号：CA2219218C
公开(公告)日：2001-04-24
申请号：CA2219218
申请日：1996-04-26
Applicant: AIRVAC INC
Inventor： GROOMS JOHN M , FEATHERINGILL BURTON A
Abstract: An apparatus for preventing waterlogging of the sensor and controller valves used to regulate operation of the vacuum interface valve (162) in a sump- vented vacuum sewerage system. A float valve (250) operates in accordance wi th the sewage level in a sump pit (154) and communicates atmospheric pressure t o the sensor and controller valves while the sewage level is below a predetermined limit, but closes passage of sewage therethrough once the sewa ge level exceeds the predetermined limit. A pressure-relief valve may also be operatively connected to the float valve (250) that vents excessive hydrostatic pressure buildups in the sump pit (154) to the atmosphere.
-
2.发明公开SUMP-VENTED CONTROLLER MECHANISM FOR VACUUM SEWERAGE TRANSPORT SYSTEM 失效MARSH VENTILATED转向机构的真空污水运送系统
公开(公告)号：EP0821753A4
公开(公告)日：1998-12-16
申请号：EP96913216
申请日：1996-04-26
Applicant: AIRVAC INC
Inventor： FEATHERINGILL BURTON A , GROOMS JOHN M
CPC classification number: E03F1/006 , Y10S137/907 , Y10T137/3109 , Y10T137/402
Abstract: An apparatus for preventing waterlogging of the sensor and controller valves used to regulate operation of the vacuum interface valve in a sump vented vacuum sewerage system. A float valve operates in accordance with the sewage level in a sump pit and communicates atmospheric pressure to the sensor and controller valves while the sewage level is below a predetermined limit, but closes passage of sewage therethrough once the sewage level exceeds the predetermined limit. A pressure-relief valve may also be operatively connected to the float valve that vents excessive hydrostatic pressure buildups in the sump pit to the atmosphere.
-
Patent Agency Ranking
公开(公告)号：AU5630196A
公开(公告)日：1996-11-18
申请号：AU5630196
申请日：1996-04-26
Applicant: AIRVAC INC
Inventor： FEATHERINGILL BURTON A , GROOMS JOHN M
Abstract: An apparatus for preventing waterlogging of the sensor and controller valves used to regulate operation of the vacuum interface valve in a sump vented vacuum sewerage system. A float valve operates in accordance with the sewage level in a sump pit and communicates atmospheric pressure to the sensor and controller valves while the sewage level is below a predetermined limit, but closes passage of sewage therethrough once the sewage level exceeds the predetermined limit. A pressure-relief valve may also be operatively connected to the float valve that vents excessive hydrostatic pressure buildups in the sump pit to the atmosphere.
-
公开(公告)号：CA2219218A1
公开(公告)日：1996-10-31
申请号：CA2219218
申请日：1996-04-26
Applicant: AIRVAC INC
Inventor： GROOMS JOHN M , FEATHERINGILL BURTON A
Abstract: An apparatus for preventing waterlogging of the sensor and controller valves used to regulate operation of the vacuum interface valve (162) in a sump- vented vacuum sewerage system. A float valve (250) operates in accordance wi th the sewage level in a sump pit (154) and communicates atmospheric pressure t o the sensor and controller valves while the sewage level is below a predetermined limit, but closes passage of sewage therethrough once the sewa ge level exceeds the predetermined limit. A pressure-relief valve may also be operatively connected to the float valve (250) that vents excessive hydrostatic pressure buildups in the sump pit (154) to the atmosphere.
-
5.发明专利
公开(公告)号：MX9708259A
公开(公告)日：1998-06-30
申请号：MX9708259
申请日：1997-10-27
Applicant: AIRVAC INC
Inventor： FEATHERINGILL BURTON A , GROOMS JOHN M
Abstract: Un aparato para prevenir la inundacion de agua de las válvulas de control y el sensor utilizado para regular la operacion de la válvula de interfase al vacío en un sistema de alcantarillado al vacío de descarga en sumidero. Una válvula de flotador opera de acuerdo con la palanca de aguas residuales en un pozo de sumidero, y comunica presion atmosférica al sensor y las válvulas de control mientras la palanca de aguas residuales está bajo un límite, predeterminado, pero cierra el paso por ahí de las aguas residuales una vez que la palanca de aguas residuales excede el límite predeterminado. Una válvula de recuperacion de presion también puede ser conectada operativamente a la válvula de flotador que descarga los residuos de presion hidroestática excesiva en el pozo de sumidero hacia la atmosfera.
-
公开(公告)号：SK145997A3
公开(公告)日：1998-10-07
申请号：SK145997
申请日：1996-04-26
Applicant: AIRVAC INC
Inventor： FEATHERINGILL BURTON A , GROOMS JOHN M
Abstract: An apparatus for preventing waterlogging of the sensor and controller valves used to regulate operation of the vacuum interface valve in a sump vented vacuum sewerage system. A float valve operates in accordance with the sewage level in a sump pit and communicates atmospheric pressure to the sensor and controller valves while the sewage level is below a predetermined limit, but closes passage of sewage therethrough once the sewage level exceeds the predetermined limit. A pressure-relief valve may also be operatively connected to the float valve that vents excessive hydrostatic pressure buildups in the sump pit to the atmosphere.
-
公开(公告)号：AU687314B2
公开(公告)日：1998-02-19
申请号：AU5630196
申请日：1996-04-26
Applicant: AIRVAC INC
Inventor： FEATHERINGILL BURTON A , GROOMS JOHN M
Abstract: An apparatus for preventing waterlogging of the sensor and controller valves used to regulate operation of the vacuum interface valve in a sump vented vacuum sewerage system. A float valve operates in accordance with the sewage level in a sump pit and communicates atmospheric pressure to the sensor and controller valves while the sewage level is below a predetermined limit, but closes passage of sewage therethrough once the sewage level exceeds the predetermined limit. A pressure-relief valve may also be operatively connected to the float valve that vents excessive hydrostatic pressure buildups in the sump pit to the atmosphere.
-
-
-
-
-
-
Search Results
7
records
(took 0.019 seconds)
