Bag having slider-actuated complimentary closure strips and a leakproofing structure
US7140772B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2001 |
| Grant date | Nov 28, 2006 |
| Priority date | — |
| Expiry date | Sep 10, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/44291
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A bag comprising two generally parallel sheets (16, 18) forming the main walls of the bag, complementary closure strips (20, 22) fixed to respective ones of the sheets, and a cursor (50) for actuating the strips (20, 22) for closing and opening purposes, the bag being characterized in that it further comprises, parallel to the closure strips (20, 22) between said sheets (16, 18), and level with the mouth (12) of the bag, a structure (100) disposed on the insides of the closure strips (20, 22), designed to provide sealing by forming a barrier between the sheets (16, 18) in the closed position of the bag, said structure (100) being placed facing the flanks (52, 54) of the cursor (50) to be urged towards their sealing position by the cursor (50) when the cursor is moved towards the sealing position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.