Electronic motorized zone valve
US6290207A · kind A · utility
11Cited by
38References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2000 |
| Grant date | Sep 18, 2001 |
| Priority date | — |
| Expiry date | Aug 28, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0318
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A zone valve for use in a hydronic system, the valve including a ball element through which liquid flows in an axial direction, a valve casing enclosing a ball element, a valve seat in contact with the ball element and the valve casing, the valve seat having a notch to receive an O-ring, an O-ring installed in the notch, and wherein the notch has a surface inclined with respect to the axial direction so that an axial force on the valve seat causes the O-ring installed in the notch to be compressed to improve a seal between the valve seat and an internal bore of the valve casing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.