Plaster frame with adjustable opening for recessed luminaires
US11085615B2 · kind B2 · utility
0Cited by
3References
18Claims
0Family size
Inventors
Key dates
| Filing date | May 4, 2020 |
| Grant date | Aug 10, 2021 |
| Priority date | — |
| Expiry date | May 4, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21V11/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A plaster frame is provided for recessed lighting luminaires, wherein the main hole size is not fixed, but adjustable, and in more than one shape opening, e.g. round, square, rectangular, and other opening shapes as required. The plaster frame has an adjustable hole, the concept here disclosed comprises a series of moving leaves and may also contain an actuating ring, the rotation of which cause the leaves to move inward or outward, changing the hole, or aperture. Although fasteners may be used to retain the various moving elements, these adjustable openings can also be utilized without the use of any fasteners.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.