Plastic enclosure for container employing three living hinges
US4669622A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 2, 1986 |
| Grant date | Jun 2, 1987 |
| Priority date | — |
| Expiry date | Apr 2, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D47/0819
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A hollow vertical cylinder is open at its lower end. A deck having an open communicating with the interior of the cylinder seals the upper end of the cylinder. A cap for the upper end has essentially the same shape and size as the top end. The cap has a first relatively small section and a second relatively large section. The first section is secured along a portion of its periphery to a corresponding portion of the upper end periphery by an integral living hinge. The two sections have adjacent edges disposed along a curved line which extends across the deck, these edges being secured to each other at opposite ends of the line and being otherwise unsecured to each other. The secured edges at each end of the line each constitute a separate integral living hinge. The first section is secured to the top end in a region spaced from both hinges. A prong is secured to the second section and is insertable into and removable out of the opening in the deck.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.