US4067743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-absorbing material
Assignee: Individual
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Filing: 1976-09-02
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Granted: 1978-01-10
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Expires: 1996-09-02
Abstract
Abstract A heat absorbing material comprising from 12 to 51 wt% of boron carbide, from 7 and 22 wt % of silicon carbide, from 1 and 10 wt % of copper, from 1 and 12 wt % of titanium diboride and from 79 and 5 wt % of carbon. The heat absorbing material disclosed displays the requisite thermophysical properties, high heat resistance and low density. The thermal conductivity of the material is from 82 and 37 W/m. deg over the range of temperatures from 20 and 1000° C, the specific heat is from 0.94 and 1.74 kJ/kg deg at temperatures varying from 20 and 600° C and the density of the material is from 2.32 and 2.50 g/cm 3 .
Inventors
- 👤 Boris Georgievich Arabei
- 👤 Mark Semenovich Zukher
- 👤 Jury Mikhailovich Markov
- 👤 Galina Nikolaevna Trokhina
- 👤 Viktor Alexandrovich Tjurin
- 👤 Iosif Isaakovich Khazanov
- 👤 Pavel Fedorovich Belmer
- 👤 Ivan Ivanovich Zverev
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:58
CPC Classifications
C; C22; C22C; C22C29/00; C04; C04B; C04B35/00; C04B35/515; C04B35/52; C04B35/56; C04B35/563; F; F16; F16D; F16D65/00; F16D65/02; F16D65/12; F16D65/125; F16D65/126; B; B22; B22F; B22F2998/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
49 words
A heat absorbing material comprising from 12 to 51 wt % of boron carbide, from 7 to 22 wt % of silicon carbide, from 1 to 10 wt % of copper, from 1 to 12 wt % of titanium diboride and from 79 to 5 wt % of carbon.
Claim 2
Dependent Claim
49 words
A heat absorbing material comprising from 12 to 51 wt % of boron carbide, from 7 to 22 wt % of silicon carbide, from 1 to 10 wt % of copper, from 1 to 12 wt % of titanium diboride and from 79 to 5 wt % of carbon.
Claim 3
Dependent Claim
39 words
A heat absorbing material as claimed in claim 1, containing 79 wt % of carbon, 12 wt % of boron carbide, 7 wt % of silicon carbide, 1 wt % of copper, and 1 wt % of titanium diboride.
Claim 4
Dependent Claim
38 words
A heat absorbing material as claimed in claim 1, containing 5 wt % of carbon, 51 wt % of boron carbide, 22 wt % of silicon carbide, 10 wt % copper, and 12 wt % of titanium diboride.
Claim 5
Dependent Claim
39 words
A heat absorbing material as claimed in claim 1, containing 31 wt % of carbon, 48 wt % of boron carbide, 14 wt % of silicon carbide, 5 wt % of copper, and 2 wt % of titanium diboride.
Claim 6
Dependent Claim
39 words
A heat absorbing material as claimed in claim 1, containing 24 wt % of carbon, 51 wt % of boron carbide, 14 wt % of silicon carbide, 5 wt % of copper, and 6 wt % of titanium diboride.
Claim 7
Dependent Claim
39 words
A heat absorbing material as claimed in claim 1, containing 51 wt % of carbon, 20 wt % of boron carbide, 18 wt % of silicon carbide, 1 wt % of copper, and 10 wt % of titanium diboride.
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) | 1981-01-09 | 1981-07-11 | 1982-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-09 | 1985-07-11 | 1986-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-09 | 1989-07-11 | 1990-01-10 | $7700.00 | Window Closed / Lapsed |