US4728364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode for the production of titanium articles that are free from low density inclusions
Assignee: Wachovia Capital Finance Corp Central
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Filing: 1987-04-29
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Granted: 1988-03-01
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Expires: 2007-04-29
Abstract
Abstract The production of titanium articles that are free from low-density inclusions by the use of titanium sponge particles for melting which particles have substantially a maximum particle size of -6 mesh and finer, preferably -8 mesh and finer.
Inventors
- 👤 Paul J. Bania
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:04
CPC Classifications
C; C22; C22B; C22B9/00; C22B9/16; C22B9/20; C22B34/00; C22B34/10; C22B34/12; C22B34/1295
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
25 words
A charge of titanium sponge adapted for melting to produce titanium articles, said charge having a maximum titanium sponge size of -6 mesh and finer.
Claim 2
Dependent Claim
25 words
A charge of titanium sponge adapted for melting to produce titanium articles, said charge having a maximum titanium sponge size of -6 mesh and finer.
Claim 3
Dependent Claim
19 words
The titanium sponge charge of claim 1 having a maximum titanium sponge particle size of -8 mesh and finer.
Claim 4
Dependent Claim
22 words
An electrode adapted for arc melting, said electrode comprising titanium sponge particles of a maximum particle size of -6 mesh and finer.
Claim 5
Dependent Claim
22 words
An electrode adapted for arc melting, said electrode comprising titanium sponge particles of a maximum particle size of -6 mesh and finer.
Claim 6
Dependent Claim
21 words
The electrode of claim 3 wherein said titanium sponge particles are of a maximum particle size of -8 mesh and finer.
Claim 7
Dependent Claim
32 words
A charge of titanium sponge adapted for use in forming an electrode for arc melting to produce titanium articles, said charge having a maximum titanium sponge size of -6 mesh and finer.
Claim 8
Dependent Claim
32 words
A charge of titanium sponge adapted for use in forming an electrode for arc melting to produce titanium articles, said charge having a maximum titanium sponge size of -6 mesh and finer.
Claim 9
Dependent Claim
19 words
The titanium sponge charge of claim 5 having a maximum titanium sponge particle size of -8 mesh and finer.
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) | 1991-03-01 | 1991-08-31 | 1992-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-01 | 1995-08-31 | 1996-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-01 | 1999-08-31 | 2000-03-01 | $7700.00 | Window Closed / Lapsed |