Fluid flow control device particularly useful as a pressure regulator
US5765588A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 25, 1996 |
| Grant date | Jun 16, 1998 |
| Priority date | — |
| Expiry date | Mar 25, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86751
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A fluid flow control device particularly useful as a pressure regulator in a water supply system for poultry or other animals, includes a valve member movable towards and away from a valve opening in the housing to control the flow therethrough; a first diaphragm exposed to the outlet pressure producing a force tending to move the valve member towards the valve opening; a spring producing a force tending to move the valve member away from the valve opening; and a second diaphragm having an effective surface area exposed to the inlet pressure which is substantially the same as the effective surface area of the movable valve member exposed to the inlet pressure so as to substantially balance the forces produced by the inlet pressure on the valve member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.