Pressure responsive liquid flow regulator
US4344456A · kind A · utility
Inventor
Key dates
| Filing date | Sep 26, 1977 |
| Grant date | Aug 17, 1982 |
| Priority date | — |
| Expiry date | Sep 26, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7831
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A regulator for controlling the liquid level in a liquid supply system having a discharge part located at an elevation higher than the elevation of the regulator. The regulator is characterized by a housing spanned by a diaphragm to define two chambers including a liquid chamber with which the intake and outlet of the regulator are connected and within which is located a lever mounting at one end a valve for sealing said intake in one position of the lever and connected at its opposite end to said diaphragm to be pivoted by the diaphragm. The other chamber of the housing receives a spring for urging said diaphragm to valve-opening position. An adjusting member projects from and is manually accessible externally of said housing and is actuable to vary the pressure exerted against said diaphragm by said spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.