Controlled separation characteristics of interlocking closure fastening devices
US4795269A · kind A · utility
13Cited by
22References
46Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 30, 1983 |
| Grant date | Jan 3, 1989 |
| Priority date | — |
| Expiry date | Jun 30, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA44B19/16
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Interlocking closure fastening devices having controlled separation characteristics are provided wherein the interdigitating hooks on one side of each closure element are longer, and/or larger than the interdigitating hooks on the opposite side of each closure element. In another embodiment, the controlled separation characteristics are obtained by forming the profile portion of the closure elements from stiffer plastic material. Combination of the two embodiments provides optimum controlled separation characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.