Abstract: An expandable wheel (100) assembly attached to a vehicle includes a circular rim disc (200) operable to receive a plurality of drive members (300) about its circumference. The drive members (300) are pivotally connected to the rim disc (200) and expand outward from the rim disc (200) via sliding levers (500) when a rotational force is applied to the rim disc (200). As a result, the drive members (300) increase the ground clearance and enhance the ability for the vehicle to negotiate variable terrain while also increasing the top velocity of the vehicle. The expandable wheel (100) assembly contracts to a circumferential closed position when the rotational force is removed.

Abstract: An expandable wheel (100) assembly attached to a vehicle includes a circular rim disc (200) operable to receive a plurality of drive members (300) about its circumference. The drive members (300) are pivotally connected to the rim disc (200) and expand outward from the rim disc (200) via sliding levers (500) when a rotational force is applied to the rim disc (200). As a result, the drive members (300) increase the ground clearance and enhance the ability for the vehicle to negotiate variable terrain while also increasing the top velocity of the vehicle. The expandable wheel (100) assembly contracts to a circumferential closed position when the rotational force is removed.

Abstract: A template for evaluating a part, comprising: a surface having a shape corresponding to the part; and at least one element on the surface corresponding to a desired location of a feature on the part. A method of evaluating a part, comprising the steps of: providing a template having a shape corresponding to the part and at least one element thereon corresponding to a desired location on the part; associating the template with the part; and using the element to determine whether the feature is at the desired location.