Plastic bag making apparatus
US10717577B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2018 |
| Grant date | Jul 21, 2020 |
| Priority date | — |
| Expiry date | Oct 21, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B2160/20
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An apparatus to successively make plastic bags, each of which includes an end surface provided with a spout, by employing the general feeding way of panel material, to be simple in structure, low in cost, high in speed, and to make it possible to successively make the plastic bags two by two. A folded portion is formed in a first web of panel material, an aperture is formed in a web of end surface material, a spout is inserted into the aperture, the spout and the web of end surface material being heat sealed with each other. The web of end surface material and the folded portion are heat sealed with each other while the web of end surface material and a second web of panel material are heat sealed with each other about the spout.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.