Pressure balance valve of internal retention structure
US10031532B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2016 |
| Grant date | Jul 24, 2018 |
| Priority date | — |
| Expiry date | Sep 21, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D23/13
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pressure balance valve of an internal retention structure includes a control head, a valve housing, a balance valve assembly, and a valve seat assembly. The balance valve assembly includes a balance valve body, a piston, and sealing elements. The valve seat assembly includes a valve seat, two water stop sleeves, and a plug cap. The valve seat is integrally formed with a valve core chamber receiving therein balance valve assembly and closed by the plug cap. The valve seat assembly forms sealed and movable engagement with the control head by means of the water stop sleeves. Positioning between the valve core the valve seat and the valve housing can be made more accurate and more reliable and sealing performance of the valve core is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.