Replaceable lamp unit and automobile headlight utilizing same
US4569006A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 15, 1985 |
| Grant date | Feb 4, 1986 |
| Priority date | — |
| Expiry date | Jan 15, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S41/192
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lamp unit (10) for being removable positioned within the rear opening (11) of an automobile headlight reflector (13). The unit (10) includes a plastic holder (19), an electric (e.g., tungsten halogen) lamp (30) having a filament structure (42) contained within the envelope (33) thereof, a clamp member (46) secured to the lamp's press-sealed end portion (47), and an insert member (48) located within a cavity (21) of the holder (19). The clamp member (46) includes a pair of skirt portions (57) which frictional engage and are thereafter secured (e.g., welded) to the innermost surface of an upstanding portion (61) of the insert member (48), thus facilitating alignment and positioning of the lamp (30) relative to the holder (19). The insert member (48) is only partly inserted within the holder's cavity (21) to effect the defined securement and is thereafter attached to the holder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.