Screw and anchor assembly
US11209037B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jul 3, 2019 |
| Grant date | Dec 28, 2021 |
| Priority date | — |
| Expiry date | Jul 7, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B25/0094
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A screw and anchor assembly include a male fastener and a female anchor. The male fastener only has threads or half-circular fins on half of the surface area. The other half is just like a regular cylinder. The female anchor only has threads or half-circular fins on half of the inner surface area. The other half is just like the inner wall of a regular cylinder. The user may push the male fastener into the female anchor, so the half-circular fins on the male fastener engages with the half-circular fins inside the female anchor and locks the male fastener to the female anchor. When the user needs to remove the male fastener, simply turns the male fastener 180 degrees and disengages the half-circular fins on the male fastener from the half-circular fins on the female anchor, then pull the male fastener from the female anchor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.