Patent US3870580A successfully refreshed from Google Patents.
US3870580A
Expired / Lapsed
US
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Method of manufacturing of a fiber reinforced structure and method of manufacture
Assignee: Individual
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Filing: 1973-05-04
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Granted: 1975-03-11
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Expires: 1993-05-04
Abstract
Abstract A fiber reinforced structure having three sets of closely packed fiber bundles, the bundles extending in three planes disposed in essentially mutually perpendicular relation; the structure being manufactured by first forming at least one of the bundle sets into a plurality of frames, the fibers of which are bonded together to form fingers between which the remaining bundle sets are woven or wrapped.
Inventors
- 👤 Jack T Belcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:59
CPC Classifications
B; B29; B29D; B29D99/00; B29D99/0025; B29D99/0028; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/16; B29C70/24
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
128 words
THE METHOD OF MAKING A HIGH STRENGTH FIBER REINFORCED STRUCTURE, COMPRISING THE STEPS OF: ARRANGING A PLURALITY OF BUNDLES, OF REINFORCING FIBERS, IN SPACED, GENERALLY PARALLEL RELATION AND IN A PATTERN DEFINING A PLURALITY OF CHANNELS BETWEEN SAID BUNDLES WITH A FIRST SET OF PARALLEL CHANNELS TRANSVERSELY INTERSECTING A SECOND SET OF PARALLEL CHANNELS TRANSVERSELY INTERSECTING A SECURING SAID BUNDLES, AT ONE END THEREOF, IN SAID DESCRIBED SPACED RELATION AND RENDERING EACH BUNDLE SUFFICIENTLY RIGID TO BE SELF-SUPPORTING, SUBSTANTIALLY FILLING SAID SETS OF CHANNELS WITH ADDITIONAL BUNDLES OF REINFORCING FIBERS ARRANGED IN LAYERS WITH THE BUNDLES OF ADJACENT LAYERS EXTENDING ALTERNATELY ALONG SAID FIRST AND SECOND SETS OF CHANNELS, AND ENCASING ALL SAID FIBERS IN AN INITIALLY FLUID BONDING AGENT, THEN SOLIDIFYING SAID AGENT TO FORM SAID STRUCTURE.
Claim 2
Independent Claim
128 words
THE METHOD OF MAKING A HIGH STRENGTH FIBER REINFORCED STRUCTURE, COMPRISING THE STEPS OF: ARRANGING A PLURALITY OF BUNDLES, OF REINFORCING FIBERS, IN SPACED, GENERALLY PARALLEL RELATION AND IN A PATTERN DEFINING A PLURALITY OF CHANNELS BETWEEN SAID BUNDLES WITH A FIRST SET OF PARALLEL CHANNELS TRANSVERSELY INTERSECTING A SECOND SET OF PARALLEL CHANNELS TRANSVERSELY INTERSECTING A SECURING SAID BUNDLES, AT ONE END THEREOF, IN SAID DESCRIBED SPACED RELATION AND RENDERING EACH BUNDLE SUFFICIENTLY RIGID TO BE SELF-SUPPORTING, SUBSTANTIALLY FILLING SAID SETS OF CHANNELS WITH ADDITIONAL BUNDLES OF REINFORCING FIBERS ARRANGED IN LAYERS WITH THE BUNDLES OF ADJACENT LAYERS EXTENDING ALTERNATELY ALONG SAID FIRST AND SECOND SETS OF CHANNELS, AND ENCASING ALL SAID FIBERS IN AN INITIALLY FLUID BONDING AGENT, THEN SOLIDIFYING SAID AGENT TO FORM SAID STRUCTURE.
Claim 3
Independent Claim
125 words
The method of making a high strength fiber reinforced structure, comprising the steps of: arranging a plurality of bundles, of reinforcing fibers, in spaced, generally parallel relation and in a pattern defining a plurality of channels between said bundles with a first set of parallel channels transversely intersecting a second set of parallel channels; securing said bundles, at one end thereof, in said described Spaced relation and rendering each bundle sufficiently rigid to be self-supporting; substantially filling said sets of channels with additional bundles of reinforcing fibers arranged in layers with the bundles of adjacent layers extending alternately along said first and second sets of channels; and encasing all said fibers in an initially fluid bonding agent, then solidifying said agent to form said structure.
Claim 4
Independent Claim
125 words
The method of making a high strength fiber reinforced structure, comprising the steps of: arranging a plurality of bundles, of reinforcing fibers, in spaced, generally parallel relation and in a pattern defining a plurality of channels between said bundles with a first set of parallel channels transversely intersecting a second set of parallel channels; securing said bundles, at one end thereof, in said described Spaced relation and rendering each bundle sufficiently rigid to be self-supporting; substantially filling said sets of channels with additional bundles of reinforcing fibers arranged in layers with the bundles of adjacent layers extending alternately along said first and second sets of channels; and encasing all said fibers in an initially fluid bonding agent, then solidifying said agent to form said structure.
Claim 5
Dependent Claim
49 words
The method defined in claim 1 wherein said step of securing said bundles comprises: attaching a plurality of said bundles to an elongated bundles of fibers, in spaced parallel relation therealong to define a frame; and arranging and holding a plurality of said frames in spaded, generally parallel relation.
Claim 6
Dependent Claim
39 words
The method defined in claim 2 wherein said step of attaching each of said bundles comprises bending a bundle of fibers to generally U-shape, embracing said elongated bundle within the bight of said U-shape, and bonding said bundles together.
Claim 7
Dependent Claim
38 words
The method defined in claim 2 wherein said step of rendering said bundles self-supporting comprises the further step of impregnating said bundles with a settable binder and at least partially curing said binder to a substantially rigid state.
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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) | 1978-03-10 | 1978-09-09 | 1979-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-10 | 1982-09-09 | 1983-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-10 | 1986-09-09 | 1987-03-11 | $7700.00 | Window Closed / Lapsed |