Score line folding tester
US4358962A · kind A · utility
12Cited by
1References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1981 |
| Grant date | Nov 16, 1982 |
| Priority date | — |
| Expiry date | Apr 27, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0258
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for measuring the force required to fold a paperboard about a score line comprises a force applying arm and a device for measuring a torque related to the force necessary to cause folding of the paperboard at the score line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.