Flyleaf heat sealer
US4526642A · kind A · utility
11Cited by
4References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 6, 1982 |
| Grant date | Jul 2, 1985 |
| Priority date | — |
| Expiry date | Dec 6, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1741
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A flyleaf heat sealer for adhering a flyleaf having its inner surface pre-coated with hot melt or heat sensitive adhesive to the exposed outer surfaces of the end sheets of a book block insert, includes means for engaging and transporting a book block insert and the flyleaf folded therearound, means for directing a flow of air heated to a temperature adequate to melt the adhesive against and impinging upon the outer surfaces of the flyleaf, and means for pressing and cooling the flyleaf and book insert between them and removing heat from the flyleaf and book block, and thus curing and hardening the adhesive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.