Vacuum packaging method and apparatus
US4723392A · kind A · utility
Assignees
Inventor
Key dates
| Filing date | Oct 16, 1986 |
| Grant date | Feb 9, 1988 |
| Priority date | — |
| Expiry date | Oct 16, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B31/022
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Pressure resistant containers, each consisting of a pressure resistant box opened at the front surface thereof and a wall plate, are circulated along an endless track with the wall plates directed outward. The front and back surfaces of each wall plate are each provided with a clamp for supporting a soft pliable bag. The bag is fed to the clamp disposed outside the pressure resistant container, and the bag is clamped by the clamp. The mouth of the bag is then opened to fill the bag with an article. Subsequently, the wall plate is turned inside out to admit the bag in the pressure resistant container, and the bag is subjected to a vacuum in the pressure resistant container and the mouth of the bag is sealed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.