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US 5,330,818 AGranted
Reinforcement preform of knitted fibres
AssigneeROLLS-ROYCE plc
InventorKenneth R. Langley
Life of this patent
Estimating the term…
Abstract
Reinforcement preform of knitted fibers for a carbon or the like component such as an airfoil guide vane. A junction between adjacent sections of the finished article of the preform is formed with a buttonhole. In assembly, the reinforcement for one of the sections is passed through the buttonhole. In this way stresses can be better transmitted to a base section with reduced risk of tearing or delamination.
Claims7
A one-piece knitted fiber preform for a reinforced article having two adjacent sections in a "T" shape, said preform comprising:
- a first preform section formed from a central portion of a single, continuous knitted fabric, the first preform section including an elongate opening extending across a width of the knitted fabric;
- and
- a second preform section being formed from the knitted fabric at a first end of the first preform section, the second preform section being passed through said elongate opening and being substantially perpendicular to the first preform section, the first and second preform section forming a junction which is further reinforced to withstand stress.
Dependencies are inferred from the claim text.