Machine for filling bags with a liquid and sealing them
US4712360A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 3, 1986 |
| Grant date | Dec 15, 1987 |
| Priority date | — |
| Expiry date | Sep 3, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B51/146
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The machine allows filling of internally sterile plastic bags with any liquid and sealing them. The machine comprises: liquid-proportioning apparatus (1), jaws (17, 18) suitable for pneumatically holding the upper lips of the bag to be able to open, fill, close it by heat-sealing (jaws 7, 8). The most important part of the machine consists of devices (10, 11, 12) able to control the jaws to open the bag with cosinusoidal law acceleration, slowly at first, preventing detachment of the upper lips of the bag during opening, and then rapidly operating so as not to delay the successive operations of: closing, sealing and discharging of the filled bag. These devices consist of a toggle-joint lever system. They make possible a notable daily production of filled and heat-sealed bags with a single proportioning and heat-sealing station, or with a limited number of stations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.