Cap
US9637280B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2016 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | Jan 12, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/565
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A cap to be attached to an extraction port of a container includes a cap main body detached from the container at time of opening, a ring remained on a side on which the container exists at the time of opening, and a passage portion formed separately from the cap main body and provided in the cap main body and the ring. The passage portion includes a leg portion provided in the ring and the cap main body. At least an upper portion of the leg portion provided in the cap main body and a middle portion between the upper portion and a lower portion of the leg portion provided in the ring communicate with each other. When the middle portion of the leg portion is broken, a state of a detection member provided in the passage portion changes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.