Cover device
US11255067B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 30, 2020 |
| Grant date | Feb 22, 2022 |
| Priority date | — |
| Expiry date | Apr 30, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D2220/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A cover device for use with an aperture disposed through a surface and having an inner perimeter surface includes a cover plate having a body portion with inner and outer surfaces and at least one elongated channel disposed therethrough. The cover plate includes a plurality of retention members extending inwardly into the at least one elongated channel. At least one engagement feature is operably coupled to the cover plate at the at least one elongated channel and slidably disposed along the at least one elongated channel between retracted and deployed positions. The at least one engagement feature includes at least one engagement member disposed below the inner surface of the cover plate that engages the inner perimeter surface of the aperture when the at least one engagement feature is in the deployed position when the cover plate is positioned over the aperture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.