Mixing valve with water modulation sealing means
US4495969A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 28, 1983 |
| Grant date | Jan 29, 1985 |
| Priority date | — |
| Expiry date | Sep 28, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87692
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A mixing valve utilizes a sleeve having hot and cold water inlet ports and outlet ports therein. A valve member is reciprocal and rotatable within the sleeve to control the temperature and volume of water passing through the outlet ports. There are port seals positioned in the sleeve hot and cold water inlet ports, which port seals are in sealing contact with the valve member and have openings therein through which pass the inlet water flow of the valve. The cold water port seal opening has a cross sectional area less than that of the hot water port seal opening and there is a restricted passage in the cold water port seal controlling the access of water to the cold water port seal opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.