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US 2007/0163559 A1Published application
Thermoplastic bow limb
AssigneeMathew A. McPherson
InventorGary L. Simonds
Life of this patent
Estimating the term…
Abstract
An archery bow limb may comprise a thermoplastic material having reinforcing. A tension side of the bow limb may have continuous unidirectional reinforcing spanning substantially the entire length of the bow limb. A method of manufacturing such bow limbs may comprise building up layers of reinforcing fibers preimpregnated with thermoplastic resin (prepregs) over a core of thermoplastic material to make a preform, and compression molding the preform to consolidate the thermoplastic of the prepreg layers to one another and to the core.
Claims20
An archery bow limb comprising:
- a body portion having a longitudinal axis, the body portion comprising a thermoplastic material and reinforcing fibers, any portion of the bow limb having a component length, the component length being measured from a first edge to a second edge in a direction parallel to the longitudinal axis;
- wherein a continuous reinforcing fiber extends at least 75% of the component length of the bow limb as measured in the area of the continuous reinforcing fiber.
An archery bow limb comprising:
- a tension side layer, a core layer and a compression side layer;
- each layer comprising a thermoplastic material;
- wherein the tension side layer further comprises a plurality of reinforcing fibers, the reinforcing fibers oriented substantially parallel to a lengthwise axis of the bow limb and continuously spanning a substantial length of the bow limb.
Dependencies are inferred from the claim text.