Patent US4055742A successfully refreshed from Google Patents.
US4055742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hard facing rod
Assignee: US TUNGSTEN Corp A CORP OF
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Filing: 1976-06-23
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Granted: 1977-10-25
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Expires: 1996-06-23
Abstract
Abstract A rod for hard-facing substrates is disclosed using a hard facing material consisting essentially of at least one vanadium carbide. In a particular embodiment of the invention tungsten is present in the hard facing material in solid solution with vanadium carbide.
Inventors
- 👤 Harry J. Brown
- 👤 William D. Forgeng
- 👤 Charles M. Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:30
CPC Classifications
C; C23; C23C; C23C4/00; C23C4/04; C23C4/06; B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/32; B23K35/327; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063; Y10T428/12097; Y10T428/12139
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
93 words
A hard facing rod comprising a metal sheath containing a hard facing material in the form of finely divided particles consisting essentially of (i) at least one type of vanadium carbide (ii) tungsten in solid solution with each type of vanadium carbide in said composition in an amount from about 10% by weight up to about 67% by weight (iii) cobalt in an amount up to about 50% by weight of said composition; the aggregate amount of all vanadium carbides in said composition being at least about 10% by weight of said composition.
Claim 2
Dependent Claim
93 words
A hard facing rod comprising a metal sheath containing a hard facing material in the form of finely divided particles consisting essentially of (i) at least one type of vanadium carbide (ii) tungsten in solid solution with each type of vanadium carbide in said composition in an amount from about 10% by weight up to about 67% by weight (iii) cobalt in an amount up to about 50% by weight of said composition; the aggregate amount of all vanadium carbides in said composition being at least about 10% by weight of said composition.
Claim 3
Dependent Claim
28 words
A hard-facing rod in accordance with claim 1 wherein said hard facing composition is in the form of a cold pressed and sintered solid material in particulated form.
References Cited (Backward Citations)
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Cited
US3109917A
Cited
US3252828A
Cited
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Cited
US3617358A
Cited
US3606359A
Cited
US3869319A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-24 | 1981-04-25 | 1981-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-24 | 1985-04-25 | 1985-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-24 | 1989-04-25 | 1989-10-25 | $7700.00 | Window Closed / Lapsed |