Lens and retainer combination
US9022627B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2013 |
| Grant date | May 5, 2015 |
| Priority date | — |
| Expiry date | Aug 27, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A retainer (23) includes two retainer portions (20, 21) surrounding lens (2). Lens (2) has a bearing surface (14) and an abutment surface (12), preferably two of each. In an intermediate stage of assembly, retainer portions when placed in confronting relation to each other around the lens are undersized in a lateral direction relative a principal dimension of lens (2). A projection (22) from a retainer portion (20, 21) bears against lens bearing surface (14), and an abutment-receiving structure (24), such as an aperture, bears against lens abutment (12). When the retainer portions (20, 21) are squeezed together and permanently connected, such as by weldment (40), projection (22) is urged more firmly against lens bearing surface (14) and lens abutment surface (12) is urged against lens aperture (24). Retainer portions (20, 21) are symmetric, and formed of sheet steel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.