Clip-mounted quartz tube electric heater
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 23, 1985
Grant Date -
N/A
app pub date -
Jul 28, 1982
filing date -
Jul 28, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electric heater has an elongated cylindrical quartz tube provided at each end with a terminal and a heater coil having one end connected at each terminal has a helical portion disposed within the tube and extending the length thereof. A ceramic support disposed in the tube extends the length of the helical portion of the coil and is formed with a heat-reflecting longitudinal groove having mutually inclined opposing sides which flank at least a portion of the circumference of the turns of the helical portion. Each of the opposing sides of the groove engage the turns of the helix tangentially in point contact, the support holding the helical portion with the turns thereof in tangential point contact with the inner surface of the tube. Each turn of the helical portion is supported at three separate points.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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