Heater mechanism for crystal pulling apparatus

Industrial electric heating furnaces – Glass furnace device – Joule effect heating

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

373 36, 422429, 219420, 117 30, C03B 5027

Patent

active

058870156

ABSTRACT:
A heater mechanism for a crystal pulling apparatus is disclosed. Electrodes made of copper or the like and disposed under a heater are connected to the heater via graphite members. A cover member is attached to each graphite member, so that the downwardly extending portion of the cover member surrounds the outer surface of the graphite member. Accordingly, a leak or splash of a melt is prevented from contacting the electrodes. The length of each graphite member is equal to or greater than the distance between the bottom surface of the heater and the top surface of a melt spill tray which distance is measured when the heater mechanism is raised The cover member is vertically slidable along the outer surface of each graphite member. Thus, even when a material melt leaks out from a crucible, the electrodes of the heater mechanism can be protected from a fusion damage or the like which would be otherwise caused by the leak of the melt.

REFERENCES:
patent: 1542716 (1925-06-01), Payne
patent: 4090054 (1978-05-01), Heine et al.
patent: 4304986 (1981-12-01), Olson
patent: 4606037 (1986-08-01), Terashima et al.
patent: 5180562 (1993-01-01), Drechsel et al.
patent: 5277934 (1994-01-01), Gilbert et al.
patent: 5363796 (1994-11-01), Kobayashi et al.
W. Zulehner, "Czochralski Growth of Silicon", Seventh International Conference on Crystal Growth (ICCG-7), Journal of Crystal Growth, Dec. 1983, pp. 189-213.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Heater mechanism for crystal pulling apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Heater mechanism for crystal pulling apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heater mechanism for crystal pulling apparatus will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2133528

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.