Crimper bar set for forming hermetically sealed packages
US4807426A · kind A · utility
43Cited by
11References
11Claims
0Family size
Inventor
Key dates
| Filing date | Sep 8, 1987 |
| Grant date | Feb 28, 1989 |
| Priority date | — |
| Expiry date | Sep 8, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1313
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In continuous packaging of comestibles in individual packages of thermo plastic sheet material, elongate, reciprocating crimper bars or dies simultaneously sever the packages and inpart end crimp seals to the packages but unfortunately featuring a high rate of rejects overcome by a special contour in the surface of one of the said crimper dies, according to present discovery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.