Dispensing device with spray nozzle and driven piston
US5547131A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 3, 1994 |
| Grant date | Aug 20, 1996 |
| Priority date | — |
| Expiry date | Jun 3, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M15/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A dispensing device which includes a container for liquid to be dispensed, an outlet nozzle including a device to break-up a flow of liquid under pressure into a spray, a piston for forcing liquid out of the container under pressure and through the nozzle, and a drive device for moving the piston a predetermined distance to dispense a predetermined quantity of liquid from the container. The drive device includes a dose selector for selecting the predetermined amount of liquid and a plunger for moving the piston, movement of the dose selector determining subsequent movement of the plunger. The device is particularly suited to nasal administration of liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.