Disc type check valve
US5992462A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1998 |
| Grant date | Nov 30, 1999 |
| Priority date | — |
| Expiry date | Oct 28, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/789
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A check valve including a housing formed by a base portion and a cap portion positioned in telescoping relation with each other. A disc shaped valve member is positioned within the housing and is defined by opposing first and second planar sides. The valve member includes a spherical portion located centrally thereon and which is captured between first and second valve supports supported on the base portion and cap portion, respectively. The valve supports hold the valve member in engagement with a valve seat, and the valve member moves out of engagement with the valve seat in response to a fluid pressure applied at a fluid inlet in the base portion to permit forward fluid flow while preventing fluid flow in the reverse direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.