Valve seal for a valve upper part, particularly for a water instrument or fitting
US6422268B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2001 |
| Grant date | Jul 23, 2002 |
| Priority date | — |
| Expiry date | May 31, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86743
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Sealing device for a valve upper part (18) comprised of a valve housing (20) and a spindle (22) rotatable therein, in particular for plumbing fixtures. The sealing device is comprised of a base disk (32) fixedly associated with the valve housing (20) and a control disk (34) which lies rubbing against the base disk and controlling the water flow through the valve upper part (18). The base disk (32) and control disk (34) are produced from ceramic or ceramic type material. A sealing surface of the base disk (32) facing away from the control disk is held urged against a sealing ring (36) of rubber or rubber like material. The sealing surface is formed by a ring shaped projecting edge part (38) on the base disk (32) or, as the case may be, on the sealing ring (36), and a groove (40) complementary to the edge part (38) defined in the sealing ring (36) or, as the case may be, a receiving groove (64) in the base disk (32).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.