US3755060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Structural shapes having improved physical properties
Assignee: General Dynamics Corp
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Filing: 1971-08-16
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Granted: 1973-08-28
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Expires: 1991-08-16
Abstract
Abstract A method is disclosed for the fabrication of highly strengthened structural shapes and tectonic components which are particularly useful in the construction of aircraft, missiles and aerospace vehicles.
Inventors
- 👤 R Bullock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:13
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29K; B29K2307/00; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1739; Y10T428/00; Y10T428/249921; Y10T428/249924; Y10T428/24994; Y10T428/249942; Y10T428/249943; Y10T428/249945; Y10T428/29; Y10T428/2913; Y10T428/2918; Y10T428/2933
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
134 words
As an article of manufacture, a filamentary composite tectonic tape, which is singularly useful in the fabrication of structural shapes and components for aircraft, missiles, space vehicles and the likE, comprising, in combination: a. a plurality of nuclear mutated graphite filaments, whose constituent crystallites are characterized by a twodimensional, turbo-stratic lattice structure; said nuclear mutation resultant from transmutation caused by confining said filaments within an ambient environment that is substantially free of oxygen and then subjecting said filaments to high energy neutron fluences (E > 1 MeV), ranging in dosage from 1 X 1018 n/cm2 to 1 X 1020 n/cm2, inclusive and; b. an encapsulating matrix of resinous material which has been impregnated into and about said plurality of nuclear mutated graphite filaments; said filaments having previously been congruously collocated in substantial planar concourse.
Claim 2
Dependent Claim
134 words
As an article of manufacture, a filamentary composite tectonic tape, which is singularly useful in the fabrication of structural shapes and components for aircraft, missiles, space vehicles and the likE, comprising, in combination: a. a plurality of nuclear mutated graphite filaments, whose constituent crystallites are characterized by a twodimensional, turbo-stratic lattice structure; said nuclear mutation resultant from transmutation caused by confining said filaments within an ambient environment that is substantially free of oxygen and then subjecting said filaments to high energy neutron fluences (E > 1 MeV), ranging in dosage from 1 X 1018 n/cm2 to 1 X 1020 n/cm2, inclusive and; b. an encapsulating matrix of resinous material which has been impregnated into and about said plurality of nuclear mutated graphite filaments; said filaments having previously been congruously collocated in substantial planar concourse.
Claim 3
Dependent Claim
71 words
In an article of manufacture, a filamentary composite tectonic shape having significantly improved strength and flexural properties fabricated by the lamination of a plurality of strip segments of said nuclear mutated, filamentary tape composite defined in claim 1; said segments being angular oriented, laminated and cured to define and form rigid filamentary graphite/matrix composite structural shapes which are propitiously useful as tectonic elements in the manufacture of high strength, lightweight structures.
References Cited (Backward Citations)
US3462340A
Cited
US3573123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |