Shielding device
US10739666B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2018 |
| Grant date | Aug 11, 2020 |
| Priority date | — |
| Expiry date | Feb 7, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B9/06
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is a shielding device, which includes: a casing having an open portion; a deformable unit installed at the casing and configured to be deformed in one direction at a predetermined temperature; a power transmission unit connected to the deformable unit to transmit a power generated by the deformation of the deformable unit; and a shielding unit installed at the casing and connected to the power transmission unit to receive the power from the power transmission unit, the shielding unit being configured to open or close the open portion, wherein the deformable unit is deformed at a first temperature to be expanded or compressed, and the shielding unit closes the open portion by means of the deformation of the deformable unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.