On summary judgment, the United States District Court for the Central District of California ruled that Magnetar Technologies, Corp. (Magnetar) does not infringe Intamin, Ltd.'s (Intamin's) U.S. Patent No. 6,062,350 (the '350 patent). Intamin appeals that ruling. Magnetar appeals the district court's order vacating a previous award of Rule 11 sanctions. Upon consideration of the claim terms on appeal, this court vacates part of the district court's claim construction and remands. This court also affirms the district court's decision to vacate the Rule 11 sanctions.