US3776139A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyrolytic carbon nose for hypersonic vehicles
Assignee: Airbus Group SAS
•
Filing: 1972-06-07
•
Granted: 1973-12-04
•
Expires: 1992-06-07
Abstract
Abstract The present invention provides a spacecraft re-entry nose which makes use of the very marked anisotropy of pyrolytic graphite, which pyrolytic graphite is arranged in slices which are orientated so that the direction of least thermal conductivity is along the main axis of the nose whereas the direction of greatest thermal conductivity is at right angles to the surface of each slice. The slices are interconnected in pairs by three traversing pins of tungsten offset by a certain angle every two slices.
Inventors
- 👤 G Leomand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:20
CPC Classifications
B; B64; B64C; B64C30/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
52 words
A pyrolytic carbon nose for hypersonic vehicles, having a termination point and a generating axis, comprising pyrolytic carbon, stacked, oriented slices characterized in that traversing pins, inclined toward said terminal point with respect to said nose generating axis, interconnect said slices in pairs producing a global linking of all the slices together.
Claim 2
Dependent Claim
52 words
A pyrolytic carbon nose for hypersonic vehicles, having a termination point and a generating axis, comprising pyrolytic carbon, stacked, oriented slices characterized in that traversing pins, inclined toward said terminal point with respect to said nose generating axis, interconnect said slices in pairs producing a global linking of all the slices together.
Claim 3
Dependent Claim
26 words
A hypersonic vehicle nose as claimed in claim 1, further characterized by the fact that said pins are made of tungsten and are cylindrical in shape.
Claim 4
Dependent Claim
28 words
A hypersonic vehicle nose as claimed in claim 1, further characterized by the fact that bores are formed in said slices for receiving said pins with clearance therein.
Claim 5
Dependent Claim
27 words
A hypersonic vehicle nose as claimed in claim 1, further characterized by the fact that each pair of said slices is united by three of said pins.
Claim 6
Dependent Claim
29 words
A hypersonic vehicle nose as claimed in claim 1, further characterized by the fact that the positioning of said pins is offset by a certain angle every two slices.
Claim 7
Dependent Claim
21 words
A hypersonic vehicle nose as claimed in claim 1, in which a felt of thin graphite is inserted between said slices.
References Cited (Backward Citations)
US3103885A
Cited
US3095162A
Cited
US3152548A
Cited
US3428473A
Cited
US3536011A
Cited
US3596604A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |