All season safety tire

A vehicle tire, comprising:

• a core portion having an interior surface portion defining a main tire cavity and an exterior surface portion;
• a tread portion disposed adjacent to the exterior surface portion of the core portion;
• a plurality of compressible pump chambers disposed between the exterior surface portion of the core portion and the tread portion, wherein each pump chamber is spaced apart relative to adjacent pump chambers, and wherein the pump chambers are evenly distributed circumferentially around the vehicle tire;
• and
• a plurality of valve assemblies, wherein each valve assembly is connected to a respective pump chamber, the main tire cavity, and outside the vehicle tire by at least one conduit, wherein the valve assemblies are configured to selectively direct a fluid to and from the pump chambers, the main tire cavity, and outside the vehicle tire.

A vehicle tire, comprising:

• two side wall portions;
• a tread portion extending between and connecting the side wall portions;
• a main tire cavity defined by interior surfaces of the side wall portions and the tread portion;
• a plurality of pump assemblies disposed in the tread portion, wherein each of the plurality of pump assemblies is configured to compress from an uncompressed state to a compressed state and to return to the uncompressed state from the compressed state;
• and
• a plurality of valve assemblies in fluid communication with the main tire cavity and cooperable with respective ones of the pump assemblies to selectively direct fluid to the main tire cavity from the pump assemblies and to selectively draw fluid from the main tire cavity to the pump assemblies, wherein the valve assemblies are molded into the tread portion.

A vehicle tire comprising:

• a tire body having a main tire chamber capable of receiving pressurized air to inflate the tire, sidewalls, an outer tire portion adjoined to the sidewalls, and tire tread formed in an outer surface of the outer tire portion;
• a plurality of elongated compressible pump chambers located within the outer tire portion and extending along at least part of a circumference of the outer tire portion, wherein each pump chamber is spaced apart relative to adjacent pump chambers, wherein the pump chambers are evenly distributed circumferentially around the vehicle tire, and wherein the pump chambers are biased to an open position and configured to compress at least partially to a closed position during rotation of the tire over a road surface;
• and
• a plurality of valve assemblies and conduits, wherein each valve assembly and conduit is associated with a respective pump chamber to direct fluid from the pump chamber to at least one of the main tire chamber and an exterior surface of the sidewalls and to direct fluid from the main tire chamber to at least one of the pump chamber and the exterior surface of the sidewalls.