Bar and crucible magnetic suspension for a crystal-growing apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 23, 1991
Grant Date -
N/A
app pub date -
Sep 4, 1985
filing date -
Sep 4, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A crystalline bar is drawn by a zone-melting process or from a melt in a crucible utilizing a magnetic suspension housing, in addition to an axial stabilization magnet, a radial stabilizer surrounding the core and including sensors for the radial position of the core-operating controllers for electromagnets surrounding the core to restore the core to its setpoint position. The fully magnetic suspension of the core eliminates friction while allowing enclosure of the crystal growth compartment to improve the quality of the crystal growth process.
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