.~.~ Including central guide rod or tube through spring
Including central guide rod or tube through spring:
(under subclass 292) Spring device wherein the elastomeric spring element is provided with a central opening through which an elongated bar or cylinder extends, wherein the bar or cylinder is caused to slide along cooperating structure during relative displacement of the vehicle parts, thereby restricting movement of portions of the spring device to the along the longitudinal axis of the bar or cylinder.
SEE OR SEARCH THIS CLASS, SUBCLASS:
201+, for a similar device which includes a friction retarder.
219+, for a similar device which includes a fluid retarder.