A skate (20) having a shoe portion (22) detachably secured to a plurality of longitudinally aligned skate wheels (26) for traversing a surface. The shoe portion having a sole defining a toe end (34) and a heel end (36). The skate further includes a frame (24) having an upper surface and a lower surface...http://www.google.co.uk/patents/US6120038?utm_source=gb-gplus-sharePatent US6120038 - Detachable skate frame
