Full flow multiport butterfly valve
US4774977A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 10, 1987 |
| Grant date | Oct 4, 1988 |
| Priority date | — |
| Expiry date | Feb 10, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87161
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A multiport valve with union plumbing connections utilizing a disc diverter of diameter larger than the valve's flow port diameter permanently housed in a spherical two piece welded housing that yields a nonserviceable but easily replaced multiport valve with low resistance. With removable plugs having surfaces shaped to correspond with the interior of the valve, the valve configuration can be changed from four ports to three or two ports at any time. Two external valve coupling flanges located normal to the ports together with clamps and a drop through actuator shaft allow multiple valve operation by a common shaft. An offset indexing spline located in the disc diverter's actuator shaft hole together with an ivertable valve body design allow relative positioning of valve diverters to be either parallel or perpendicular in multiple valves/common shaft configurations. The combination of this valve's features facilitates welding valve housing halves together to provide a versatile multiport valve system with easily replaced components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.