Carbon fiber reinforced composite coil spring

Details Carbon fiber reinforced composite coil spring Carbon fiber reinforced composite coil spring

1979-01-15

1981-04-07

Reger, Duane A.

Spring devices

Fibrous

267166, F16F 104

Patent

active

042601436

ABSTRACT:
A carbon fiber reinforced composite coil spring is provided which is made from a braid formed of carbon fibers oriented at a preferred angle to the braid axis of approximately plus or minus 45.degree. and impregnated with a resin which serves as a substantially continuous matrix phase. Longitudinal reinforcing fiber may be incorporated into the braid to prevent it from straightening under longitudinal tension. The carbon fiber reinforced composite coil spring is formed by wrapping the braid, impregnated with a non-solidified resin, within a groove which extends helically along the surface of a helical mandrel and solidifying the resinous matrix material, and then removing the solid composite coil spring from the helical mandrel.

REFERENCES:
patent: 2829881 (1958-04-01), Morris
patent: 2852424 (1958-09-01), Reinhart et al.
patent: 3449199 (1969-06-01), Mead

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