Adhesive supplying system
US4588109A · kind A · utility
1Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 1985 |
| Grant date | May 13, 1986 |
| Priority date | — |
| Expiry date | Feb 25, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05C11/1042
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
In a thermo-cementing and folding machine which has a suck-back facility, by which at the end of an adhesive-applying operation adhesive supplied through the nozzle (22) is sucked back into the nozzle so as to prevent `drooling`, auxiliary suck-back steps are introduced at timed intervals following the primary suck-back operation, through controlled amounts, in order to counter further risk of `drooling` caused by thermal expansion of the adhesive in the nozzle (22). The number of auxiliary suck-back steps is variable according to the adhesive supply rate at the time of termination of the adhesive-applying operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.