Bypass valve
US4972877A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1989 |
| Grant date | Nov 27, 1990 |
| Priority date | — |
| Expiry date | Oct 23, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86839
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A bypass/diverter valve for controlling the flow of fluid from a source to a fluid treatment device such as a water softener. The valve includes a valve housing defining a circular chamber having a cylindrical wall into which three spaced ports open into. Two of the ports form inlet/outlet ports communicating with connecting conduits. The third port forms an intermediate port that communicates with the input to the water softener. The valve housing also defines a second intermediate port communicating with the output of the water softener and which communicates with the valve chamber through a passage arrangement. A plug-like valving member is rotatable within the chamber and includes a recess which together with the chamber wall defines a passage for selectively communicating one of said inlet/outlet ports with said first intermediate port while concurrently communicating said other inlet/outlet port with the second intermediate port or alternately for communicating said first inlet/outlet port with said second intermediate port while concurrently communicating the second inlet/outlet port with said first intermediate port. The valving member is also positionable to block flow out…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.