Bag having cursor-actuated complementary closure strips with additional leakproofing structure
US6902321B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 10, 2001 |
| Grant date | Jun 7, 2005 |
| Priority date | — |
| Expiry date | Oct 1, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/44291
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A bag including two generally parallel sheets forming the main walls of the bag, complementary closure strips fixed to respective ones of the sheets, and a cursor for actuating the strips for closing and opening purposes. Parallel to the closure strips between the sheets, and level with the mouth of the bag, additional sealing structure in relief disposed on the insides of the closure strips, designed to provide sealing by forming a barrier between the sheets in the closed position of the bag, the additional sealing structure in relief being placed facing the flanks of the cursor to be urged towards their sealing position by the cursor when the cursor is moved towards the sealing position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.