Viscous non-contact jetting method and apparatus
US8757511B2 · kind B2 · utility
17Cited by
44References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2011 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Apr 28, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/05
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
This invention concerns a method and apparatus for dispensing minute quantities of highly viscous material from a jetting needle when an expelling mechanism is activated using a nozzle plate with a jetting chamber having a top formed by a diaphragm and a bottom in fluid communication with a jetting needle. Fluid enters the chamber from an inlet channel and is jetted from the chamber by deforming the diaphragm to block the channel and expel a drop of fluid from the needle. A diaphragm driven metering chamber and/or reservoir chamber can optionally be used provide fluid to the jetting chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.