Fluid dispenser with passive pressurization
US7264141B2 · kind B2 · utility
6Cited by
62References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2004 |
| Grant date | Sep 4, 2007 |
| Priority date | — |
| Expiry date | Jul 7, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D83/7713
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A fluid dispenser from which fluid may be dispensed upon passive pressurization of a fluid reservoir therein. Upon exposing a nib of the fluid dispenser to the surroundings, either by disengagement of a cap or extension or contraction of the fluid dispenser, the fluid reservoir is pressurized without requiring the operator to exert manual force on the walls of the fluid dispenser. In certain embodiments, the rate of flow initiated passively may be increased by the operator actively engaging an interface, which increases the pressure within the fluid reservoir.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.