Interlocking device and packaging bag with interlocking device
US8459870B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2008 |
| Grant date | Jun 11, 2013 |
| Priority date | — |
| Expiry date | Nov 6, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D33/2508
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A packaging bag has a zipper including a pair of male member and a female member that are engageable with each other. The male member includes: a belt-shaped male base element provided on a packaging bag body; and a male engaging portion projecting from the belt-shaped male base element. The female member includes: a belt-shaped female base element located at a position opposed to the belt-shaped male base element; and a female engaging portion projecting from the belt-shaped female base element, the male engaging portion and the female engaging portion being disengageably engaged to form an engaging portion. The belt-shaped male base element and the belt-shaped female base element are made of a resin of which tensile modulus of elasticity is in a range of 700 MPa to 1600 MPa. The engaging portion is made of a resin of which tensile modulus of elasticity is in a range of 110 MPa to 560 MPa.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.