(under subclass 124.157) Subject matter wherein the displaceable flowable agent includes a gaseous medium (e.g., air) and an incompressible liquid medium (e.g., oil).
(1) Note. This subclass requires either (a) simultaneous use of gaseous and liquid medium in an element of the running gear or (b) the existence of both gaseous and liquid medium handling systems for cooperative employment within the suspension system.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.5+, for an active suspension responsive while the vehicle is in surface traversing motion which may or may not involve a hydraulic-pneumatic suspension element.
6.15+, for a vehicle including means used to alter the relative height or levelness of the vehicle body, chassis, or frame which may or may not include a hydraulic-pneumatic suspension element.
