Container bottom base provided with a bi-concave arch
US11548678B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2018 |
| Grant date | Jan 10, 2023 |
| Priority date | — |
| Expiry date | Jun 7, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2501/0036
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A container (1) made of plastic having a main axis (X) being provided with a body (5) and a bottom base (6) extending from a lower end of the body (5), the bottom base (6) comprising: ⋅—a peripheral seat (7) defining a laying plane (8); ⋅—a concave arch (10) which extends from the periphery of a central zone (11) of the bottom base (6) to the peripheral seat (7), said concave arch (10) having a rounded general shape with a concavity turned towards the outside of the container (1); ⋅—a series of principal reinforcing grooves (13) which extend radially from the central zone (11) to at least the peripheral seat (7). The concave arch (10) has two annularly tangentially continuous concentric regions, i.e. a central region (15) and a peripheral region (16), said annularly tangentially concentric regions being in continuity with each other and presenting two different radius of curvature, the peripheral region (16) having a radius of curvature smaller than the one of the central region (15).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.