Hermetic packaging apparatus
US4860523A · kind A · utility
40Cited by
9References
17Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Oct 30, 1987 |
| Grant date | Aug 29, 1989 |
| Priority date | — |
| Expiry date | Oct 30, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B51/146
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The hermetic packaging apparatus comprises a nozzle for reducing pressure in a thermoplastic packaging bag containing certain contents, the nozzle reduces pressure in the packaging bag by the pressure control of the air pump and the water sucked from the contents is directed to a strainer tank. Thereafter, the nozzle moves backward, the opening of the packaging bag is heated by a heating element, and an airtight pressure connecting bar is pressured downward so that the opening portion is heat-sealed by the airtight pressure connecting bar and the sealing base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.