Front loading projection unit
US4219870A · kind A · utility
61Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1978 |
| Grant date | Aug 26, 1980 |
| Priority date | — |
| Expiry date | Jul 7, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21V19/0005
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An improved projection unit which permits removal of the unit's lamp from the front, concave portion of the unit's reflector. A first retention member is used to maintain the lamp in pre-established alignment within the reflector and a second retention member, e.g. resilient clamp, is movably oriented on the reflector's neck portion to secure the first retention member in a first position and release it in a second.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.