US Patent No: 7,225,966
Number of patents in Portfolio can not be more than 2000
Welded joints with polymer sealant
Stats
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Jun 5, 2007
Issued date -
Aug 5, 2003
filing date -
10/635,829
serial no -
In Force
status
Importance
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Abstract
An assembly, such as an aircraft component, is formed with a weld joint by, for example, using friction stir welding, FSW, to form a lap joint between a stiffer and the interior surface of the skin of the component. A sealant layer, such as a monomer sealant/adhesive is applied to the surfaces to be joined, and is cured in place by the elevated temperatures of the welding process to form an elastomeric fay surface sealing, such as a fluoroelastomeric coating, to protect the component from corrosion at the welds. Additional heat for curing may be applied by laser or induction heating or the like.
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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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| 5,120,175 Shape memory alloy fastener | 66 | 1991 | |
| 6,230,957 Method of using friction stir welding to repair weld defects and to help avoid weld defects in intersecting welds | 27 | 1999 | |
| 6,168,066 Friction stir conduction controller | 50 | 1999 | |
| 6,582,539 Method for making large composite structures without use of an autoclave | 7 | 2001 | |
| 6,543,671 Apparatus and method for friction stir welding using filler material | 30 | 2001 | |
| 6,779,707 Friction stir welding as a rivet replacement technology | 26 | 2002 | |
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| 5,769,306 Weld root closure method for friction stir welds | 84 | 1996 | |
| 5,972,524 Double lap joint with welded Z-pins | 33 | 1997 | |
| 6,460,752 Method of friction stir welding with grooved backing member | 16 | 2000 | |
| 6,543,670 Interface preparation for weld joints | 18 | 2001 | |
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| 6,051,325 Joining of machined sandwich assemblies by friction stir welding | 59 | 1997 | |
| 6,045,028 Integral corrosion protection of friction-welded joints | 61 | 1998 | |
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| 5,460,317 Friction welding | 266 | 1994 | |
| 5,813,592 Friction stir welding | 109 | 1996 | |
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| 6,328,261 Friction welding metal components | 24 | 1998 | |
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| 6,779,657 Single-use applicators, dispensers and methods for polymerizable monomer compound | 14 | 2001 | |
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| 6,604,667 Device for joining, by friction stir welding, at least two workpieces | 10 | 2002 | |
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| 6,536,651 Friction stir welding method | 10 | 2001 | |
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| 5,066,091 Amorphous memory polymer alignment device with access means | 18 | 1990 | |
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| 6,247,633 Fabricating low distortion lap weld construction | 22 | 1999 | |
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| 5,611,479 Friction stir welding total penetration technique | 77 | 1996 | |
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| 6,686,052 Cooling plate and production method therefor | 6 | 2002 | |
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| 6,759,449 Dental adhesive composition | 19 | 2002 | |
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| 6,142,825 Waterproof connector and manufacturing method thereof | 7 | 1998 | |
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| 5,609,294 Railroad track assembly and method | 17 | 1995 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Dec 5, 2014 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 5, 2018 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| 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 |