Automatic valving system
US4024887A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 24, 1975 |
| Grant date | May 24, 1977 |
| Priority date | — |
| Expiry date | Nov 24, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7287
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Disclosed is an automatic valving system for shutting off liquid flow into a container when the level of liquid within the container is above a predetermined level, and for permitting liquid flow when the liquid is below the predetermined level. A liquid is positioned within the container at the predetermined level, and a pressure responsive shutoff valve is fluidly connected in series between a source of liquid under pressure and the interior of the container. The shutoff valve has communication with the fluid sensor and is operative to shut off liquid flow into the container in response to a pressure variation received from the sensor upon the level of liquid within the container rising above the predetermined level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.