Method and apparatus for sensing a seal on a film
US6792807B2 · kind B2 · utility
9Cited by
26References
48Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2001 |
| Grant date | Sep 21, 2004 |
| Priority date | — |
| Expiry date | Apr 23, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/02827
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for detecting seals on a film from which bags are formed includes a force transmitter and a force sensor. The force transmitter transmits a force from the film to the sensor. The force sensor receives the transmitted force and provides a force signal. A controller receives the force signal and provides a seal signal. The the force sensor may be an mechanical sensor, an acoustic sensor, a mechanical sensor, a vibration sensor or a piezoelectric sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.