A toy vehicle is provided for launching comprising a body with a chamber. The chamber has an opening. The chamber releasably holds a power source (e.g., fluid) under pressure. A covering mechanism is disposed adjacent the chamber, and is biased to a first position to cover the opening. The covering mechanism...http://www.google.ca/patents/US20070099541?utm_source=gb-gplus-sharePatent US20070099541 - Hand-launchable fluid-boosted toy vehicle
