Apparatus for constant pressure diagonal-web crush-scoring
US4698052A · kind A · utility
16Cited by
8References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 4, 1985 |
| Grant date | Oct 6, 1987 |
| Priority date | — |
| Expiry date | Dec 4, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/6579
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
There is provided an apparatus for applying constant pressure to a plurality of anvil rollers for crush-scoring used in combination with crush-scoring cylinders having protrusions extending from the surface thereof. Each anvil roller is supported in a substantially frictionless manner and the constant pressure is supplied by a flexible diaphragm acting on a plunger which can move substantially without friction in a pneumatic cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.