Method of fabricating a capillary heat pipe wick
Abstract
Abstract A conformal capillary wick for a heat pipe is fabricated by preparing a slurry composed of an organic solvent containing an organic binder in solution and powder particles of relatively high thermal conductivity in suspension; applying a layer of the slurry to the inner wall surface of the heat pipe casing, evaporating the solvent from the layer to recover the binder and utilize the surface tension forces of the binder to draw the particles together into a highly compacted condition wherein the particles are bonded to one another and to the casing wall by the binder, and the particles and binder define a myriad of capillary passages extending throughout and opening through the surfaces of the layer; and curing the binder to form a dimensionally stable capillary structure providing a capillary wick for transporting working fluid condensate from the condenser section to the evaporator section of the heat pipe.
Inventors
- 👤 K Staudhammer
- 👤 B Marcus
Bibliographic Details
Claims Analysis
Total Claims: 1References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |