Searchlight with modular control mechanism
US4419721A · kind A · utility
35Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1981 |
| Grant date | Dec 6, 1983 |
| Priority date | — |
| Expiry date | Dec 21, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S8/003
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control system for positioning a searchlight (2) in azimuth and elevation including an upper torque tube (34) and a lower torque tube (39) which are coupled together; an upper push rod (46), push rod coupling (50) and lower push rod (54) which are coupled together; and control elements (65, 90 & 93, 100) operative to rotate the lower torque tube and also operative to reciprocate the lower push rod.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.