Valve assemblies
US5623920A · kind A · utility
80Cited by
13References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 6, 1995 |
| Grant date | Apr 29, 1997 |
| Priority date | — |
| Expiry date | Jan 6, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M15/0096
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A valve assembly for a pressurized aerosol container which has a neutral bias. The valve may be of the metered dose type and is preferably springless. Containers equipped with such valves may be employed in breath actuated dispensing devices with simplified mechanisms since it is not necessary to overcome any biasing force within the valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.