Gas charging method for a bag equipped with gas compartment
US9920882B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2013 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | Jan 18, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B61/00
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
In a method and apparatus for filling a gas in a gas compartment portion of a bag, a bag-conveying gripper (41) including a pair of gripping elements (45 and 46), and the inner surface (gripping surface) of the gripping element (45) being formed with a shallow groove (47). The bag-conveying gripper (41) grips the sealed portion (12) of the bag, and a neck section (16a) of the gas compartment portion (16) in the sealed portion is held at a groove formed in the gripping elements of the bag-conveying gripper. Compressed gas is ejected into the gas compartment portion through incision (17) formed in the neck section, inflating the gas compartment portion 16. The inflated shape of the neck section held by the bag-conveying gripper is restricted to a flat configuration by the inner surfaces of the bag-conveying gripper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.