![electrode in a pneumatic sewage ejector system electrode in a pneumatic sewage ejector system](https://www.iqengineers.co.uk/images/uploads/img-original-203.jpg)
![electrode in a pneumatic sewage ejector system electrode in a pneumatic sewage ejector system](https://www.kemet.com/content/dam/kemet/lightning/images/ec-content/2020/05/Screen-Shot-2020-05-11-at-11.48.45-AM.png)
Another object of the invention is the provision of a relatively trouble-free, electrically operated liquid level control in a sewage ejector. An object of the present invention is the provision or' an improved liquid level control in a sewage ejector.the grease is non-conductive, the sewage is prevented from contacting the longer electrode and the ejector becomes inoperalive.Since the introduction of pressure ⁇ air is discontinued when the sewage level drops below the longer electrode, the bridging of the electrodes results in a rapid on-otl operation and the sewage is thus prevented from collecting in the receiver. pressure air is delivered to the receiver as soon as the sewage level contacts the longer electrode.Another diiculty that has occurred with the previously available liquid level control is that grease from the sewage collects in the receiver and bridges the gap between the longer electrode and the shorter electrode.pressure air is delivered to the receiver, which lair causes the sewage to be ejected from the receiver until the grounded sewage breaks contact with the lower end of the longer electrode.ya circuit is completed from the receiver, which is grounded, through the sewage and to the shorter electrode.
![electrode in a pneumatic sewage ejector system electrode in a pneumatic sewage ejector system](https://www.plumbingsupply.com/images/zoeller-sewage-package-typical-outdoor-installation.png)
![electrode in a pneumatic sewage ejector system electrode in a pneumatic sewage ejector system](https://iirorwxhlipmmk5m.ldycdn.com/cloud/oqBpqKklRmiSolmorplkk/qidongdianjizhongxinqi-heisekuan.jpg)
controlling quantity of material stored in vessel G05D- SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES.238000011144 upstream manufacturing Methods 0.000 description 2.238000005868 electrolysis reaction Methods 0.000 description 2.239000007858 starting material Substances 0.000 description 8.238000004353 relayed correlation spectroscopy Methods 0.000 claims 12.239000010865 sewage Substances 0.000 title claims description 206.Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number Publication date Application granted granted Critical Publication of US3118391A publication Critical patent/US3118391A/en Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links US3118391A - Pneumatic sewage ejector - Google Patents US3118391A - Pneumatic sewage ejector - Google Patents Pneumatic sewage ejector Download PDF Info Publication number US3118391A US3118391A US3118391DA US3118391A US 3118391 A US3118391 A US 3118391A US 3118391D A US3118391D A US 3118391DA US 3118391 A US3118391 A US 3118391A Authority US United States Prior art keywords sewage receiver contact electrode relay Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.