Carton closing and sealing apparatus
US4063403A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1976 |
| Grant date | Dec 20, 1977 |
| Priority date | — |
| Expiry date | Aug 23, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B7/18
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Apparatus for automatically closing cartons having self-sealing reclosable top closures adapted, when closed, to lie within the confines of the carton bodies, the end closures having opposing pairs of sealing flaps adapted to be juxtaposed in face-to-face contacting relation, preferably with the mouths of carton liners interposed therebetween, the juxtaposed sealing flaps and liner mouths being displaceable downwardly to close the cartons and thereafter displaceable upwardly to reopen the cartons, the apparatus comprising a series of continuously moving carriages which receive and advance the openended cartons in a path of travel, the cartons being first acted upon by sets of folding fingers which concurrently infold the leading and trailing end closure flaps and the projecting ends of the liners, whereupon sweep means act to juxtapose the opposing pairs of sealing flaps with the liners interposed therebetween. If desired, heat sealing means may be provided to seal together the juxtaposed portions of the liners lying between the sealing flaps; and if the sealing flaps are provided with foldable extensions, additional sweep means are provided to infold the extensions. Thereafter the…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.