Apparatus for sealing a web of film
US4761197A · kind A · utility
34Cited by
25References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1986 |
| Grant date | Aug 2, 1988 |
| Priority date | — |
| Expiry date | Jul 28, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1737
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for sealing a web of film including a heater member for melting a portion of the film to create side and chevron seals. A back-up bar is located diametric the heater member. The heater member includes two elongated heater bars and two wing heater bars.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.