US Patent No: 6,863,767
Number of patents in Portfolio can not be more than 2000
Paste-bond clevis joint
Stats
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Mar 8, 2005
Issued date -
Aug 23, 2001
filing date -
09/938,065
serial no -
In Force
status
Importance
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Abstract
A method is provided for using a three-dimensional, Pi-shaped, woven preform to assemble first and second composite components. The preform is infused with resin, and at least one surface of the preform is adhered to at least one surface of the first component using a film adhesive. The preform is cured while an oversized tool coated with non-stick material is located within a clevis formed by two legs of the preform. A removable peel ply is located between the tool and the clevis, and semi-rigid over-presses are used during curing. After curing, the tool, over-presses, and peel ply are removed, and adhesive is injected into the clevis. The second component is inserted into the clevis, the adhesive adhering to an inner surface of the clevis and to at least one surface of the second component for retaining the second component within the clevis, the second component having a smaller width than the tool.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 5,725,709 Fabrication method for an inflatable deployable control structure for aerospace vehicles | 3 | 1995 | |
| 6,374,570 Apparatus and method for joining dissimilar materials to form a structural support member | 34 | 2000 | |
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| 5,487,930 Three structure structural element with interlocking ribbing | 22 | 1993 | |
| 5,580,622 Structural element with ribbing mechanically blocked against separation | 9 | 1994 | |
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| 4,671,470 Method for fastening aircraft frame elements to sandwich skin panels covering same using woven fiber connectors | 67 | 1985 | |
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| 6,306,239 Method of fabricating a stringer-stiffened shell structure using fiber reinforced composites | 15 | 1999 | |
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| 4,946,369 Silicone mold and elastomer tool life | 6 | 1989 | |
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| 5,476,704 Plastic-composite profiled girder, in particular a wing spar for aircraft and for wind-turbine rotors | 49 | 1994 | |
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| 6,007,894 Quasi-isotropic composite isogrid structure and method of making same | 16 | 1997 | |
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| 4,966,802 Composites made of fiber reinforced resin elements joined by adhesive | 48 | 1989 | |
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| 5,052,906 Plastic transfer molding apparatus for the production of fiber reinforced plastic structures | 90 | 1989 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 8, 2016 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |