The annular pneumatic spring of the spring wheel with deformable ground engaging part comprises an air chamber in free and unobstructed communication with an annular resilient tire on the wheel so that the pressure of the air in the chamber is applied to such tire. The chamber may or may not be annular. The tire may be pneumatic and the communication with the air chamber direct and continuous throughout the rim zone of the tire so that the chamber formed by the tire is combined with the air chamber to form a continuous single chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
418, for similar devices wherein the air in the chamber is fed to the tire at reduced pressure, see this class, subclass 418.
345.1, for similar devices constituting a sectional pneumatic tire.
155+, for similar devices constituting a combined cushion and pneumatic tire.