CARBON CRUCIBLE AND METHOD OF MANUFACTURING SAME
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
May 21, 2015
app pub date -
Jul 1, 2013
filing date -
Jul 4, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A carbon crucible (1) has a structure including a straight trunk portion (9) and a tray portion (10) vertically separated from each other. The straight trunk portion (9) is made of a carbon fiber-reinforced carbon composite material and the tray portion (10) is made of graphite. An upper end face of the tray portion (9) is provided with a step portion (11) having an outer circumference-side region that is higher relative to an inner circumference-side region thereof. The straight trunk portion (9) is fitted to the step portion (11), and in the straight trunk portion (9) and the step portion (9) that are fitted to each other, a gap is provided between an inner circumferential surface (11a) of the step portion (11) and an outer circumferential surface (9a) of the straight trunk portion (9). The gap is preferably from 0.1% to 1.0% of the diameter of the straight trunk portion.
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