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US 10,780,671 B2Granted
Filament wound composite tools and related methods
AssigneeCCDI Composites, Inc.
InventorRob Sjostedt
Life of this patent
Estimating the term…
Abstract
Composite products and related methods are disclosed. In some examples, methods of filament winding composite components and products, such as a sleeve and/or a mandrel for use in down-hole applications, are disclosed. The winding of components can involve using a percentage of fiber roving strands that are blown during manufacture such that they have fiber loops that when wound as layers forms bridges across the discrete layers to enhance the inter-laminar strength of the composite product.
Claims15
A mandrel made of a composite material comprising:
- fiber bands forming plurality of filament wound layers that include a first filament wound layer and a second filament wound layer defining an elongated body with a hollow core;
- each of the first filament wound layer and the second filament wound layer comprising a first strand of the fiber bands comprising a standard roving strand substantially without strand loops;
- each of the first filament wound layer and the second filament wound layer comprising a second strand of the fiber bands comprising a blown roving strand having strand loops surrounding a core bridging between the plurality of filament wound layers of the elongated body to enhance interlaminar shear strength;
- and
- resin for binding the first and second filament wound layers;
- wherein the standard roving strand of the first filament would layer and the blown roving strand of the second filament wound layer are intermingled to form an intertwined bundle;
- and
- wherein the blown roving strand of the first filament wound layer are intermingled with the blown roving strand of the second filament wound layer.
5 more elements
A method of filament winding a down-hole product comprising:
- using blown glass fiber roving strands comprising strand loops with standard roving strands substantially without strand loops as fiber bands, the standard roving strands and the blown glass roving strands of the first filament would layer and the second filament wound layer being intermingled to form an intertwined bundle;
- and
- winding a plurality of filament wound layers using the fiber bands to form the down-hole product having a body, the plurality of filament wound layers include a first filament wound layer and a second filament wound layer, and enhanced interlaminar shear strength;
- wherein the blown glass fiber roving strands of the first filament wound layer are intermingled with the blown glass fiber roving strands of the second filament wound layer inside a resin matrix.
1 more element
Dependencies are inferred from the claim text.