US Patent 6935626 Spring assembly

The disclosure relates to a spring assembly for use in a parking brake system that solves problems associated with conventional parking brake systems. The disclosed spring assembly imparts a minimum force (e.g., tensile force) onto the parking brake cable of the parking brake system when the parking brake is applied. The spring assembly comprises a sliding collar, a wire ring located about the exterior diameter of the sliding collar, a locking collar, a spring and a sleeve for receiving the aforementioned components.