Safety blade for severing stretchable film
US4426029A · kind A · utility
21Cited by
22References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 30, 1981 |
| Grant date | Jan 17, 1984 |
| Priority date | — |
| Expiry date | Dec 30, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T225/298
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A severing blade comprising a plurality of spaced-apart sharp piercing teeth disposed below and between a plurality of spaced-apart blunt projections, the blunt projections being adapted to stretch and/or thin a segment of a sheet material, such as stretchable film, to be severed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.