Automatic tipping-off apparatus for a high-intensity-discharge arc tube
US4329166A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 24, 1980 |
| Grant date | May 11, 1982 |
| Priority date | — |
| Expiry date | Dec 24, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B23/099
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An automatic tipping-off apparatus for hermetically sealing the exhaust tubulation of a dosed and otherwise processed arc tube for a high-intensity-dicharge device. The apparatus for use with an arc tube fabricating machine including a rotatable turret having a plurality of arc tube holding members mounted about the peripheral portion thereof. The turret is operational to move the arc tube holding members in a sequential stop-and-go fashion to and from a plurality of operating stations located in close proximity to the turret. The tipping-off apparatus maintains the arc tube in a vertical orientation and utilizes spring-loaded jaws to retain the arc tube while a burner moves into position about the exhaust tubulation. A timing means controls the movement of the jaws and burner to provide a controlled draw of the tubulation to provide a uniform thickness for the tip portion of the finished arc tube and to effect a fire polishing thereof, the apparatus being designed to be compatible with a high-speed arc tube fabricating machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.