Apparatus for sealing and severing a web of film
US4964944A · kind A · utility
7Cited by
32References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1986 |
| Grant date | Oct 23, 1990 |
| Priority date | — |
| Expiry date | Jul 28, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1378
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for sealing and severing a web of film. The apparatus includes a first jaw located on one side of the web of film and a second jaw located on a second side of the web of film. The first and second jaws cooperate to grip the web of film. Located within the first jaw is a heater member for sealing and severing the web of film. The heater member is secured so that the time and/or pressure at which the heater member engages the web of film may be varied independent of the first jaw.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.