Gray water interface valve systems and methods
US7533426B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 22, 2006 |
| Grant date | May 19, 2009 |
| Priority date | — |
| Expiry date | Nov 11, 2026 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03C1/12
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Embodiments of the present invention provide systems and methods for a gray water interface valve for use with a vacuum source and a collection tank. The systems and methods comprise a basin for collecting gray water, the basin having an outlet; a reservoir in fluid communication with the outlet, the reservoir adapted to house gray water; a vent line associated with the reservoir; a pressure switch associated with the reservoir, the pressure switch adapted to signal when the reservoir is full; a controller associated with the pressure switch, the controller adapted to begin a discharge cycle by checking and switching on the vacuum source if necessary; a solenoid valve activated by the controller in order to control the flow of vacuum through the system; and a drain valve adapted to open via vacuum pressure and evacuate gray water from the reservoir, wherein the drain valve is adapted to close before all of the gray water from the reservoir is emptied to reduce noise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.