US4448832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dimensionally woven composite
Assignee: Individual
•
Filing: 1983-04-25
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Granted: 1984-05-15
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Expires: 2003-04-25
Abstract
Abstract A three dimensional woven composite is constructed of strands of graphite composite forming a basic geometric structure comprising a combination of regular octahedron and tetrahedron prisms alternately and regularly spaced. The framework of the geometric structure has one central intersection made up of twelve arms of strands and adjacent incomplete intersections of four or seven arms or strands.
Inventors
- 👤 William J. Kidwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:17
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/16; B29C70/24; G; G01; G01M; G01M11/00; G01M11/02; G01M11/04; Y; Y10; Y10S; Y10S428/00; Y10S428/902; Y10S52/00; Y10S52/10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24124; Y10T428/30; Y10T442/00; Y10T442/30; Y10T442/3179; Y10T442/3195
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
58 words
A three dimensional woven composite comprising at least one bundle of elongated graphite threads contiguously connected around a common point in a completely oriented central intersection, and extending outwardly therefrom to adjacent intersections of alternately spaced regular octahedronal and regular tetrahedronal linkages of a basic geometric structure having complete and incomplete intersections capable of being extended to complexity.
Claim 2
Dependent Claim
58 words
A three dimensional woven composite comprising at least one bundle of elongated graphite threads contiguously connected around a common point in a completely oriented central intersection, and extending outwardly therefrom to adjacent intersections of alternately spaced regular octahedronal and regular tetrahedronal linkages of a basic geometric structure having complete and incomplete intersections capable of being extended to complexity.
Claim 3
Dependent Claim
22 words
A composite as set forth in claim 1, wherein: the bundle comprises a set of six threads contiguously connected around said intersectons.
Claim 4
Dependent Claim
30 words
A composite as set forth in claim 1, wherein: the linkages include 12 links disposed angularly around the central complete intersection and either four or seven links around incomplete intersections.
Claim 5
Dependent Claim
34 words
A composite as set forth in claim 3, wherein: there are four links of threads disposed at 90° angles, and eight links at either 60° or 120° angles respectively at said central complete intersection.
Claim 6
Dependent Claim
43 words
A composite as set forth in claim 3, wherein: there are four links of thread at 90° angles at each four link intersection, and three links at 90° angles and four links at 60° or 120° angles at each seven link incomplete intersections.
Claim 7
Dependent Claim
25 words
A composit as set forth in claim 1, wherein: the composite contains six complete octahedronal linkages adapted to form an octahedronal shaped basic geometric structure.
Claim 8
Dependent Claim
44 words
A composite as set forth in claim 6, wherein: the octahedronal shaped framework has significant empty space among the linkages to allow it for maximum expansion of said links in the radial direction and zero expansion of the entire framework in all three directions.
Claim 9
Dependent Claim
36 words
A composite as set forth in claim 1, wherein: said composite provides the matric for uniform stress load--such that when pressure is applied anywhere in one direction it will produce stress evenly throughout the entire matrix.
Claim 10
Dependent Claim
67 words
A three dimensional woven composite comprising at least one bundle of elongated strands of graphite composite contiguously interlocked angularly around a common point in a completely oriented intersection wherein the strands extend outwardy to form adjacent intersections of alternately spaced regular octahedronal and regular tetrahedronal linkages of a basic geometric structure having a plurality of complete and incomplete intersections of linkages capable of being extended to complexity.
Claim 11
Dependent Claim
67 words
A three dimensional woven composite comprising at least one bundle of elongated strands of graphite composite contiguously interlocked angularly around a common point in a completely oriented intersection wherein the strands extend outwardy to form adjacent intersections of alternately spaced regular octahedronal and regular tetrahedronal linkages of a basic geometric structure having a plurality of complete and incomplete intersections of linkages capable of being extended to complexity.
Claim 12
Dependent Claim
20 words
A composite as set forth in claim 9, wherein: the bundle comprises six twisted strands contiguously wrapped around said intersections.
Claim 13
Dependent Claim
33 words
A composite as set forth in claim 9, wherein: the linkages comprise a central complete intersection of twelve links extending angularly to alternately spaced incomplete intersections of either four or or seven links.
Claim 14
Dependent Claim
66 words
A composite as set forth in claim 11, wherein: there are four links of strands disposed at 90° angles and eight links at 60° or 120° angles complete intersection, and four links of strands disposed at 90° angles at each of the four link intersections as well as three links at 90° and four links at 60° or 120° angles at each seven link incomplete intersections.
Claim 15
Dependent Claim
44 words
A composite as set forth in claim 9, wherein: said strands are spun fron carbon fibers which has a negative co-efficient of expansion that produces a shrinkage in the axial direction along with an expansion of width of the strand in the radial direction.
Claim 16
Dependent Claim
33 words
A composite as set forth in claim 9, wherein: the basic geometric structure comprises six octahedronal linkages and eight tetrahedronal linkages disposed in alternated spaced relationships in an octahedronal shaped basic geometric structure.
Claim 17
Dependent Claim
44 words
A composite as set forth in claim 13, wherein: there is substantial empty space within said basic geometric structures for sufficient shrinkage in the axial direction and expansion in the radial direction to achieve zero expansion of the entire structure in all three dimensions.
Claim 18
Dependent Claim
36 words
A composite as set forth in claim 9, wherein: said basic geometric structure provides a dimensionally stable platform whereupon when pressure is applied anywhere in one direction the stress is distributed uniformly throughout the entire structure.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-15 | 1987-11-14 | 1988-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-15 | 1991-11-14 | 1992-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-15 | 1995-11-14 | 1996-05-15 | $7700.00 | Window Closed / Lapsed |