Patent US3278342A successfully refreshed from Google Patents.
US3278342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of growing crystalline members completely within the solution melt
Assignee: Westinghouse Electric Corp
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Filing: 1963-10-14
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Granted: 1966-10-11
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Expires: 1983-10-14
Abstract
No abstract record available.
Inventors
- 👤 Harold F John
- 👤 Jr John W Faust
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:59
CPC Classifications
C; C30; C30B; C30B27/00; C30B9/00; Y; Y10; Y10S; Y10S148/00; Y10S148/107
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A PROCESS FOR PRODUCING A CRYSTALLINE BODY OF A SOLID MATERIAL, SAID MATERIAL CRYSTALLIZING IN A LATTICE STRUCTURE OF ONE OF THE FOLLOWING TYPES FACE CENTERED CUBIC, DIAMOND CUBIC, ZINC BLENDE, HEXAGONAL AND ORTHOHOMBIC AND CAPABLE OF CRYSTAL GROWTH IN SOLUTION BY A TWIN PLANE RE-ENTRANT EDGE MECHANISM, COMPRISING THE STEPS (1)FORMING A SOLUTION MELT CONSISTING OF SAID MATERIAL IN A SOLVENT, THE TEMPERATURE OF THE MELT BEING AT SUBSTANTIALLY THE LIQUIDUS TEMPERATURE OF THE SOLUTION, AND (2) COOLING THE MELT AT A RELATIVELY SLOW RATE OF FROM 0.1* C./MIN. TO 3* C./MIN., THE RATE BEING BELOW THAT WHICH WOULD INDUCE SUBSTANTIAL CRYSTAL GROWTH BY MECHANISM OTHER THAN THE TWIN PLANE RE-ENTRANT EDGE MECHANISM, WHEREBY TO PRODUCE SAID CRYSTALLINE MEMBER, SAID CRYSTALLINE MEMBER BEING GROWTH ENTIRELY WITHIN THE SOLUTION MELT.
Claim 2
Dependent Claim
130 words
A PROCESS FOR PRODUCING A CRYSTALLINE BODY OF A SOLID MATERIAL, SAID MATERIAL CRYSTALLIZING IN A LATTICE STRUCTURE OF ONE OF THE FOLLOWING TYPES FACE CENTERED CUBIC, DIAMOND CUBIC, ZINC BLENDE, HEXAGONAL AND ORTHOHOMBIC AND CAPABLE OF CRYSTAL GROWTH IN SOLUTION BY A TWIN PLANE RE-ENTRANT EDGE MECHANISM, COMPRISING THE STEPS (1)FORMING A SOLUTION MELT CONSISTING OF SAID MATERIAL IN A SOLVENT, THE TEMPERATURE OF THE MELT BEING AT SUBSTANTIALLY THE LIQUIDUS TEMPERATURE OF THE SOLUTION, AND (2) COOLING THE MELT AT A RELATIVELY SLOW RATE OF FROM 0.1* C./MIN. TO 3* C./MIN., THE RATE BEING BELOW THAT WHICH WOULD INDUCE SUBSTANTIAL CRYSTAL GROWTH BY MECHANISM OTHER THAN THE TWIN PLANE RE-ENTRANT EDGE MECHANISM, WHEREBY TO PRODUCE SAID CRYSTALLINE MEMBER, SAID CRYSTALLINE MEMBER BEING GROWTH ENTIRELY WITHIN THE SOLUTION MELT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |