Plastic snap hinge closure
US5257708A · kind A · utility
28Cited by
16References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 18, 1993 |
| Grant date | Nov 2, 1993 |
| Priority date | — |
| Expiry date | Mar 18, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D47/0814
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A plastic snap hinge closure having tension elements disposed on a plastic closure including a lower part and an upper part which are connected with each other via a main hinge A desired snap effect is achieved by means of lengths of the tension elements which can be changed by the action of a pull. The tension elements extend in planes between the attachment points. Each tension element has partial sections which cause the change in length. The partial sections are either C-shaped, U-shaped, or O-shaped. The tension elements permit a maximum percentage change of length of each tension element of approximately 10% to 50%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.