Sight glass
US11086091B2 · kind B2 · utility
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0References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 14, 2017 |
| Grant date | Aug 10, 2021 |
| Priority date | — |
| Expiry date | Jun 25, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02B1/306
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A sight glass for mounting in a hole, provided with radially inwardly extending protrusions, in a sheet material wall of a housing, for example a switchgear housing, includes: a body with a mounting surface and a cylindrical wall arranged on the mounting surface and extending perpendicularly from the mounting surface; a plurality of L-shaped slots in the radially outer surface of the cylindrical wall; and a gasket arranged on the mounting surface, the gasket enclosing the cylindrical wall. The body and cylindrical wall are of a monolithic transparent material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.