Metered dose dispensing aerosol valve
US6454140B1 · kind B1 · utility
31Cited by
9References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 17, 2001 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Jul 17, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D83/52
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A metered dose aerosol valve that minimizes loss of prime and loss of drug dose by having a one-way valve mechanism positioned toward the end of a transfer passage that allows drug substance to pass from the aerosol container into the metering chamber, but not back.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.