Apparatus for dispensing heated fluid materials
US5375738A · kind A · utility
58Cited by
32References
51Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1993 |
| Grant date | Dec 27, 1994 |
| Priority date | — |
| Expiry date | Oct 27, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B1/3053
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An electromagnetic dispenser (10) for dispensing viscous heated fluids, such as hot melt adhesives. A fixed pole (50) extends from a fluid chamber (20). The coil (46) is located about a portion of the fixed pole (50) and spaced from the fluid chamber to isolate the coil from the fluid flow path of the adhesive. The coil is insulated from the heat which is conducted from the adhesive as well as provided with a heat sink (88) for dissipating heat. A plunger (32) is mounted within the fluid chamber for reciprocal movement therein to open and close dispensing orifice in response to the field generated by the coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.