Valve with a two-component seal
US6926178B1 · kind B1 · utility
27Cited by
18References
39Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 4, 2000 |
| Grant date | Aug 9, 2005 |
| Priority date | — |
| Expiry date | Mar 13, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D83/52
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A valve for an aerosol container including a valve body, a valve stem having a dispensing passage, and a sealing ring contacting the valve stem. The valve stem is slidably moveable relative to the sealing ring from a valve-closed position to a valve-open position in which the interior of the valve body is in communication with the dispensing passage. The sealing ring includes a flexible component and a rigid component. The valve is preferably a metering valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.