Arc tube construction
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 2, 1983
Grant Date -
N/A
app pub date -
Jul 1, 1980
filing date -
Jul 1, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A vitreous arc tube is provided with constricted cylindrical neck portions intermediate the bulb portion proper and the pinched seals. The constricted necks may be formed as an incident in the blowing of the bulb out of quartz tubing. When the seal portions are pressed by the pinching jaws about the foliated inleads, the necks are maintained in substantially their original configuration and merely shrunk slightly about the inleads extending through them. An internal configuration is achieved which is substantially a surface of revolution and fin-effect is avoided.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully