US Patent No: 5,651,848
Number of patents in Portfolio can not be more than 2000
Method of making three dimensional articles from rigidizable plastic composites
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Jul 29, 1997
Issued date -
Jun 2, 1995
filing date -
08/459,670
serial no -
In Force
status
Importance
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Abstract
Rigidifiable composites are formed by stitching a reinforced B-stage resin sheet stock to form a three-dimensional preform. The preform is subsequently rigidified by initiating final cure of the resin. Molded articles, inflatable and other structures, such as, tank, tunnel and sewer liners are some of the typical structures which can be formed by the methods of the invention. Control of thread count, thread tension and thread spacing can be used to consolidate multi-ply or layered preforms, which, upon cure, can have up to 90% of the load carrying capacity of compression molded fiber reinforced articles.
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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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| 4,664,961 Structural fiber pre-forms and method of making | 11 | 1984 | |
| 4,913,937 Composite articles using meltable resin holding threads | 21 | 1988 | |
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| 5,071,506 Equipment for making composite tubes including an inflatable heated bladder and a composite mold having a negative coefficient of thermal expansion | 33 | 1990 | |
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| 4,410,577 Woven layered cloth reinforcement for structural components | 34 | 1982 | |
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| 4,393,116 Shaped materials | 13 | 1980 | |
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| 4,250,702 Multifilament thread and method of forming same | 8 | 1979 | |
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| 4,299,871 Stitch bond fastening of composite structures | 36 | 1979 | |
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| 4,876,973 Method of and apparatus for blind tufting composite laminated joints | 11 | 1984 | |
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| 4,206,895 Loop-tension joint | 35 | 1978 | |
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| 4,331,495 Method of fabricating a reinforced composite structure | 56 | 1981 | |
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| 4,786,343 Method of making delamination resistant composites | 43 | 1985 | |
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| 4,530,868 Elastomer-coated cloth composite | 17 | 1983 | |