Apparatus and method for detecting a heat seal in a moving plastic film
US5488480A · kind A · utility
12Cited by
17References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 16, 1994 |
| Grant date | Jan 30, 1996 |
| Priority date | — |
| Expiry date | Feb 16, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B50/006
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus and method are provided for detecting a formation or change in the consistency of a moving sheet material. The apparatus includes a radiation source, a radiation receiver, a support base for the sheet material, and a signal processor for producing a signal in response to the detection of a formation in the material. The apparatus may be modified to include moving or stationary support bases, and may be further modified to include structure for automatically positioning the source and receiver to optimize the detection of formations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.