Patent ID: 9149712
Filing Date: 2015-10-06
Classification: A63C

Abstract:
1. A roller skate comprising: a shoe; a carrier joined to the shoe; four wheels including a front wheel and three rearward wheels, the three rearward wheels being arranged in an in-line orientation on the carrier; an axle extending through each wheel; a first suspension system including two compressible coiled springs having longitudinal axes oriented at an angle comprising both horizontal and vertical components, the bottom ends of the two springs being located in front of and/or under the top ends of the two springs; second, third, and fourth suspension systems each including: four compressible coiled springs having longitudinal axes oriented vertically; and left and right hubs connected to one of the axles, wherein a first pair of the four compressible coiled springs are joined to the left hub and a second pair of the four compressible coiled springs are joined to the right hub such that one spring of each pair of springs is connected in front of the axle and the other spring of each pair of springs is connected behind the axle; wherein each one of the four wheels is independently cushioned by one of the four suspension systems.