MULTIPLE SPRING ASSEMBLY

摘要

A spring device formed by a continuous strand to provide a series of helical coils interconnected by integral portions of the strand, each of the helical coils having a longitudinal axis and the coils being disposed such that the axis is generally perpendicular to the plane of the interconnecting strand portions and the device being in the shape of an annulus such that the axis is generally perpendicular to the plane of the annulus and whereby the device is particularly adapted for use in annular hydraulic servo motors as a piston return spring.