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US 4,782,992 AGranted
Method of forming articles
AssigneeTextron Inc.
InventorGordon S. Doble
Life of this patent
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AssigneeTextron Inc.
InventorGordon S. Doble
Estimating the term…
An improved method of forming an article includes providing continuous, woven, flat, helical tape of filaments and a continuous flat, helical tape of foil. The two helical tapes are interleaved to form a helical assembly having turns of filaments alternating with turns of foil. Deformation forces are applied against the turns of the helical assembly in a direction parallel to the central axis of the helix to bond the turns of the tapes off oil and filament together while maintaining the filaments free of axially extending forces. During the bonding of the turns of the helical foil and filament tapes, the tapes may be bonded to a housing or other component of an article to be reinforced. Radial reinforcing can be provided by including in the helical assembly a layer having filaments with central axes which are radial relative to the central axes of the filaments of the helical tape.
A method of forming an article comprising the steps of providing a helical tape of filaments, providing a helical tape of metal foil, interleaving the helical tape of filaments and the helical tape of metal foil to form a helical assembly having turns of filaments interspersed with turns of metal foil, applying deformation force against the turns of the helical assembly in a direction parallel to the central axis of the helical assembly and bonding the turns of the helical tape of metal foil to the turns of the helical tape of filaments while maintaining the filaments substantially free of plastic deformation forces extending axially along the filaments.
A method of forming an article, said method comprising the steps of providing a helical series of filaments disposed in a side-by-side relationship along a radius of the helical series of filaments and with each filament extending between axially opposite ends of the helical series of filaments, positioning metal foil between adjacent turns of the helical series of filaments, applying deformation forces against the turns of the helical series of filaments in a direction parallel to the central axis of the helical series of filaments, and bonding the metal foil to the helical series of filaments while maintaining the filaments substantially free of plastic deformation forces extending axially along the filaments.
A method of forming an article comprising the steps of forming a helix having helical turns of mtallic matrix material interspersed with helical turns of side-by-side filaments having relatively high strength and low ductility compared to the metallic matrix material, applying a deformation force against the turns of the helix in a direction parallel to the central axis of the helix and bonding the turns of the metallic matrix material and turns of the filaments while maintaining the relatively high strength, low ductility filaments substantially free of plastic deformation forces extending axially along the filaments.
Dependencies are inferred from the claim text.