Valve stem for use in a metering valve of a metered dose inhaler
US6863195B2 · kind B2 · utility
0Cited by
13References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2002 |
| Grant date | Mar 8, 2005 |
| Priority date | — |
| Expiry date | Jan 30, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R11/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Valve stems for use in an aerosol metering valve are described herein. The valve stems include structures designed to limit the likelihood and extent to which a gasket can intrude into an opening in the valve stem. The valve stems described herein also limit the likelihood and extent of damage to the gasket caused by repeated use of the metering valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.