Dispensing module and method of dispensing with a pneumatic actuator
US8794491B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 22, 2012 |
| Grant date | Aug 5, 2014 |
| Priority date | — |
| Expiry date | Oct 22, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86662
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An adhesive dispensing module includes a pneumatic actuator for actuating reciprocating movement of a piston on a dispenser valve member. The pneumatic actuator includes a valve element and a pneumatic housing with an inlet chamber, an exhaust chamber, and a piston chamber. The valve element includes a plurality of inlet passages and a plurality of exhaust passages. The valve element rotates from a first position in which the inlet passages deliver pressurized air from the inlet chamber to the piston chamber, to a second position in which the exhaust passages exhaust pressurized air from the piston chamber to the exhaust chamber. The valve element also includes a plurality of fins configured to be driven by an electromagnetic coil to move the valve element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.