Spring assembly for automatic transmission of automotive vehicle and the like

A spring assembly for an automatic transmission comprising:

• a) a pair of generally ring-shaped spring retainers each formed from a synthetic resin material, each of said spring retainers including an annular non-perforated base;
• b) a plurality of mounting protrusions circumferentially formed on each spring retainer wherein each mounting protrusion has at least one adjacent mounting protrusion;
• c) a plurality of guide protrusions circumferentially formed on each spring retainer wherein each of the guide protrusions is positioned between a respective one of the mounting protrusions and one of its adjacent at least one mounting protrusion;
• and
• d) a plurality of coil springs wherein:
• each coil spring includes a first end and a second end;
• each coil spring has its first end mounted on the base of, and around one of the plurality of mounting protrusions on, one of the spring retainers and its second end mounted on the base of, and around one of the plurality of guide protrusions on, the other of the spring retainers.