Hot melt adhesive dispensing system of the hand held gun type
US4303108A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1978 |
| Grant date | Dec 1, 1981 |
| Priority date | — |
| Expiry date | Nov 6, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05C17/00543
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A hot melt adhesive dispensing system that includes a hand held gun and a molten adhesive source, the gun and the source being selectively connectable one with the other in a novel manner to permit charging and recharging of the gun with molten adhesive from the molten adhesive source. The hand gun includes novel charge valve structure adapted to interconnect with novel feed valve structure mounted on the hot melt adhesive source so as to accomplish transfer of a hot melt adhesive charge in molten form, from the source to the gun storage chamber. The adhesive is pressurized within the gun's storage chamber by a novel pressure device at least partially incorporated within the storage chamber, thereby providing the motive force to cause discharge of molten adhesive from the gun's nozzle in response to manual activation of the gun's trigger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.