Patent ID: 7264190

Claim:
A vehicle for breaking material, comprising: an elongate vehicle frame; a feeder having a feed end portion and a discharge end portion, wherein the feeder is configured to convey the material from the feed end portion to the discharge end portion; and a material breaker supported via the vehicle frame with a feed end portion that is downstream from the discharge end portion of the feeder, wherein the material breaker includes: a platform configured to support the material that is received from the feeder, at least one breaker element configured to move away from the platform, and to move towards the platform to contact at least a portion of the material that is received from the feeder and is supported by the platform, and a lifting mechanism including at least one telescoping cylinder operatively connected to the at least one breaker element, wherein the at least one telescoping cylinder is configured to move the at least one breaker element away from the platform, and to allow gravitational forces to move the at least one breaker element towards the platform to contact the at least a portion of the material that is received from the feeder and is supported by the platform.