Metered, mechanically propelled, liquid dispenser
US6413246B1 · kind B1 · utility
Inventor
Key dates
| Filing date | May 18, 2000 |
| Grant date | Jul 2, 2002 |
| Priority date | — |
| Expiry date | May 18, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M15/009
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to a metered, mechanically propelled, liquid dispenser. It has a main body cylinder having liquid and liquid advancing mechanism for advancing the liquid into a metered dosage dispensing chamber. There is a cocking mechanism which includes a lock pin, a stressed slot and a rest slot. When the cocking mechanism is locked, the advancing means is moved and liquid is ready for firing from the metered dosage dispensing chamber through a dispensing orifice. The cocking mechanism is slowly rotated while holding the main body cylinder vertically and the pin is manually moved into the rest slot thereby causing a plunger to be forced by a spring to push against a stop on a trigger which advances the trigger to rapidly force the liquid out of the metered dosage dispensing chamber through the dispensing orifice. The dispensing orifice includes a one-way valve which allows the liquid to be dispensed while preventing air from returning to the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.