Fuel efficient vehicle tire having a variable footprint and low rolling resistance.U.S. patent: 7,066,226 Issued: June 27, 2006 Inventor: Robert Angelo Fiore Key statement: A tire for vehicles offering low rolling resistance Rolling resistance, sometimes called rolling friction or rolling drag, is the resistance that occurs when an object such as a ball or tire rolls. It is caused by the deformation of the wheel or tire or the deformation of the ground. wherein the ground-contact surface area is variable as a portion of the tread part can be retracted re·tract v. re·tract·ed, re·tract·ing, re·tracts v.tr. 1. To take back; disavow: refused to retract the statement. 2. and/or extended using pneumatic pneumatic /pneu·mat·ic/ (noo-mat´ik) 1. pertaining to air. 2. respiratory. pneu·mat·ic adj. 1. Of or relating to air or other gases. 2. force to withdraw from, or come into contact with the road surface. The achieved object of a tire with a lower rolling resistance yields improved fuel consumption efficiency, improvements in exterior and interior noise levels and a reduced tendency to exhibit hydroplaning Hydroplaning and hydroplane may refer to:
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