Apparatus and method of producing a food server with pre-fold of glue panels
US5980442A · kind A · utility
Inventors
Key dates
| Filing date | Jun 10, 1997 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Jun 10, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B50/26
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A novel food server and method of producing a food server is disclosed. The novel method includes moving a web of paper at a constant rate of speed, rotary perforating a plurality of lines on the moving web, using rotary timing belts to score at least two fold lines on the moving web, where the two fold lines define two glue flaps, rotary die-cutting the moving web to cut away portions of the paper adjacent the glue flaps, plow folding the moving web along the two fold lines defining the glue flaps, and applying glue to the moving web. After plow folding along the fold lines and applying the glue, the moving web is cross cut to form a blank having the glue flaps. Then, the blank is vacuum folded to cause portions of the blank to contact and adhere to the glue flaps, thereby forming the food server from the blank. The novel food server includes a first panel having two side flaps each defined by a score line, and a second panel having two side flaps each defined by a score line. Each of the side flaps on the second panel has an outside portion and an inside portion defined by a score line. There is adhesive between each of the outside portions and each of the side flaps on the first…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.