Valve assembly
US5730171A · kind A · utility
14Cited by
10References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 23, 1997 |
| Grant date | Mar 24, 1998 |
| Priority date | — |
| Expiry date | Jan 23, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2514
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A valve assembly 30 having a pressure balancer 38 disposed in a housing 32 in which is formed a chamber 48. A one-piece poppet unit 46 is mounted for movement in the chamber 48. The poppet unit 46 has a shaft 51 with a circular disc 106 to which is bonded a diaphragm 56 and a pair of poppets 52 and 54 formed at either end thereof. The diaphragm 56 divides the chamber to form a compartment on either side thereof in which there is zero leakage across the diaphragm 56 of the poppet unit 46 and eliminating any cross-flow leakage between the hot and cold water, respectively, in the chamber compartments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.