The present invention teaches a runner or blade for an ice skate having a novel configuration and structure, such as a blade having greater width at the edge at both the anterior end and posterior end relative to the middle, or alternately, a blade having greater width at the edge at the anterior end...http://www.google.com/patents/US6523835?utm_source=gb-gplus-sharePatent US6523835 - Blade for an ice skate
