Liquid drop dispenser with movable deflector
US7914121B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2008 |
| Grant date | Mar 29, 2011 |
| Priority date | — |
| Expiry date | Aug 16, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/15
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A liquid dispenser includes a liquid supply channel, a liquid supply adapted to feed a stream of liquid through the supply channel, a liquid return channel adapted to receive liquid from the supply channel, a liquid dispensing outlet opening, and a diverter member forming at least a portion of a wall of the liquid supply channel, said diverter member being selectively movable to form a convex surface along which liquid remains attached, thereby to divert droplets from the supply channel through the dispensing outlet opening. The motion of the diverter member is substantially orthogonal to the direction of liquid flow, so that energy associated with moving the diverter member imparts no energy to the diverted droplets. The energy associated with moving the diverter member is less than 100 nJ per pL droplet volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.