(under subclass 273) Spring device including a second spring element which is subjected to a twisting force about its central axis when the vehicle parts are relatively displaced, and undergoes a resultant elastic deformation about that axis.
(1) Note. Patents claiming only one torsion spring and showing an identical spring arrangement on another axle or vehicle portion have not been included in this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
259+, for a torsion spring used in combination with a different-type spring.
