Lamp with safety switch
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 27, 2003
Grant Date -
N/A
app pub date -
Aug 16, 2000
filing date -
Aug 17, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to an electric lamp (100) whose light source reaches a very high temperature during operation. It mainly relates to a lamp provided with a double envelope such that a fracture or a crack of the outer envelope (2) does not prevent the lamp (100) from functioning. The lamp is therefore provided with a safety cut-out wire (5) which allows the opening of the conduction path of the lamp in case of a fracture. To this end a safety-switch portion (6) is inserted in the safety cut-out wire (5). This portion is made of a material which opens the conduction path as soon as the safety-switch portion (6) comes into contact with air.
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