Cartridge core assembly and cosmetic container comprising cartridge core assembly
US12096836B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 18, 2023 |
| Grant date | Sep 24, 2024 |
| Priority date | — |
| Expiry date | Dec 18, 2043 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA45D40/06
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A cartridge core assembly comprises a cartridge, a screw barrel, a guide member, an elastic member, and a nut, the cartridge is fixedly connected to the guide member, the screw barrel and the nut are screwed to each other, and the elastic member is sleeved on the nut in a circumferentially fixed manner; the guide member is provided with a plurality of first engagement teeth, the elastic member is provided with a plurality of second engagement teeth, and each tooth of at least one of the first engagement teeth and the second engagement teeth comprises a bottom surface, a first beveled surface and a second beveled surface; and an angle between the first beveled surface and the bottom surface is α1, an angle between the second beveled surface and the bottom surface is α2, and the α1 and the α2 are different acute angles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.