Container spout portion, resin made container having the container spout portion and preform having the container spout portion
US11518570B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2018 |
| Grant date | Dec 6, 2022 |
| Priority date | — |
| Expiry date | Sep 14, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7158
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
In a container spout portion included in a container body and configured to be sealed as a seal portion comes into contact with an inner circumferential face in association of attachment thereto of a cap having the seal portion therein, an arcuate portion convex inwards is formed between a top face and the inner circumferential face of the container spout portion. A tangential line to the arcuate portion starts from either a joining point between the arcuate portion and the top face or from a crossing point between a virtual extension line of the arcuate portion and the top face or a virtual extension line of the top face. An angle θ formed between the top face and the tangential line ranges from 30 to 60 degrees.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.