US4060126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat transfer between solids and fluids utilizing polycrystalline metal whiskers
Assignee: Individual
•
Filing: 1976-08-20
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Granted: 1977-11-29
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Expires: 1996-08-20
Abstract
Abstract Improved heat transfer is obtained between a solid and a fluid by using polycrystalline metal whiskers attached to the solid member which comes in contact with the fluid.
Inventors
- 👤 Hermann J. Schladitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:59
CPC Classifications
F; F28; F28F; F28F13/00; F28F13/18; F28F13/185; C; C23; C23C; C23C16/00; Y; Y10; Y10S; Y10S165/00; Y10S165/905
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
106 words
A heat transfer element having at least one surface cooperating in defining a path for conducting a fluid medium, and polycrystalline metal whiskers attached in a heat conducting manner to said surface to thereby increase the heat emitting and absorbing surface area of said element, said whiskers being formed of thin elongated members attached in substantial alignment with overlapping ends to further enhance the conductivity and the strength of the heat transfer element, said whiskers penetrating the boundary layer of the fluid as the fluid is conducted over said surface with the strength of the whiskers being capable of withstanding the pressure of the flowing medium.
Claim 2
Dependent Claim
106 words
A heat transfer element having at least one surface cooperating in defining a path for conducting a fluid medium, and polycrystalline metal whiskers attached in a heat conducting manner to said surface to thereby increase the heat emitting and absorbing surface area of said element, said whiskers being formed of thin elongated members attached in substantial alignment with overlapping ends to further enhance the conductivity and the strength of the heat transfer element, said whiskers penetrating the boundary layer of the fluid as the fluid is conducted over said surface with the strength of the whiskers being capable of withstanding the pressure of the flowing medium.
Claim 3
Dependent Claim
40 words
A heat transfer element according to claim 1 adapted to form a partition between cavities for first and second fluid medium and having opposed surfaces for facing the two medium both with polycrystalline metal whiskers attached in heat conducting manner.
Claim 4
Dependent Claim
39 words
A heating device according to claim 2 wherein two coaxial tubes with the inner tube forming the partition between two cavities for first and second fluid medium and having its inner and outer surfaces provided with polycrystalline metal whiskers.
Claim 5
Dependent Claim
29 words
An electrical heating device comprising an element according to claim 1, formed as an electrical conductor to whose outer surface polycrystalline metal whiskers are attached in heat conducting manner.
Claim 6
Dependent Claim
27 words
A heating device according to claim 4 wherein the conductor is provided with an electrically insulating but heat conducting coating to which the metal whiskers are attached.
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) | 1980-11-28 | 1981-05-30 | 1981-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-28 | 1985-05-30 | 1985-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-28 | 1989-05-30 | 1989-11-29 | $7700.00 | Window Closed / Lapsed |