US3953174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for growing crystalline bodies from the melt
Assignee: Saint Gobain Ceramics and Plastics Inc
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Filing: 1975-03-17
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Granted: 1976-04-27
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Expires: 1995-03-17
Abstract
Abstract The invention is an improved apparatus for use in a system for growing crystalline bodies from the melt. The apparatus has a novel crucible die assembly in which the dies are located in cavities in the crucible side wall.
Inventors
- 👤 Harold E. LaBelle, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:08
CPC Classifications
C; C30; C30B; C30B15/00; C30B15/34; C30B15/005; C30B15/02; C30B15/14; C30B29/00; C30B29/60; C30B29/66; Y; Y10; Y10T; Y10T117/00; Y10T117/10; Y10T117/1024; Y10T117/1032; Y10T117/1036; Y10T117/104; Y10T117/1044
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
96 words
Apparatus for use in a system for growing crystalline bodies from the melt comprising: a crucible having a side wall and a bottom wall defining an interior space for containing a melt, said side wall having an upper end surface, a plurality of cavities in said side wall extending down from said upper end surface for receiving a like plurality of dies with capillaries, and at least one passageway in said side wall connecting the bottom ends of said cavities with said interior space so that melt can flow from said interior space into said cavities.
Claim 2
Dependent Claim
96 words
Apparatus for use in a system for growing crystalline bodies from the melt comprising: a crucible having a side wall and a bottom wall defining an interior space for containing a melt, said side wall having an upper end surface, a plurality of cavities in said side wall extending down from said upper end surface for receiving a like plurality of dies with capillaries, and at least one passageway in said side wall connecting the bottom ends of said cavities with said interior space so that melt can flow from said interior space into said cavities.
Claim 3
Dependent Claim
54 words
Apparatus according to claim 1 further including a cover seated on the upper end of said side wall and covering the interior space of the crucible, an opening in said cover, and a charge tube connected to and extending up from said cover, said charge tube communicating with said interior space through said opening.
Claim 4
Dependent Claim
24 words
Apparatus according to claim 1 wherein said crucible side wall is substantially cylindrical, and said cavities are substantially circumferentially spaced in said side wall.
Claim 5
Dependent Claim
20 words
Apparatus according to claim 1 wherein said at least one passageway extends radially from said interior space to said cavities.
Claim 6
Dependent Claim
19 words
Apparatus according to claim 1 further including means exterior of said crucible for heating said crucible and die assembly.
Claim 7
Dependent Claim
17 words
Apparatus according to claim 1 further including a capillary die assembly disposed in each of said cavities.
References Cited (Backward Citations)
US3591348A
Cited
US3687633A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-04-27 | 1979-10-27 | 1980-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-27 | 1983-10-27 | 1984-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-27 | 1987-10-27 | 1988-04-27 | $7700.00 | Window Closed / Lapsed |