Patent ID: 7564210

Claim:
A driver for an inflatable rotating exhibit product comprising a housing being a hollow, and having an annular wall having an inside surface; and an outer edge; at least one pawl being formed on and protruding in from the inside surface of the annular wall and being flush with the outer edge of the annular wall; and a motor mount being connected to the annular wall and having an upper surface; and a through hole being formed coaxially through the motor mount; a synchronous motor being mounted on the upper surface of the motor mount and having a shaft being keyed, being connected to and driven by the synchronous motor; being mounted rotatably through and protruding from the through hole in the motor mount and having a distal end; and a reverse-rotation preventer being mounted adjacent to the motor mount and having a limit casing being essentially rectangular, being mounted on and rotating with the shaft and having a center; a bottom surface; two ends; two sides a central recess being formed in the bottom surface between the two ends and the two sides; a central protrusion being formed in the central recess; a keyed hole being formed through the center of the casing and the central protrusion and being mounted around the shaft so the limit casing rotates with the shaft; and two limit slots being formed longitudinally respectively in the ends of the limit casing and communicating with the central recess; a sliding limit being mounted slidably in the central recess of the casing around the central protrusion and having a body having an open center, being mounted slidably in the central recess of the casing around the central protrusion and being limited by touching the central protrusion when sliding in the central recess in the limit casing; and two limit arms being formed respectively on the body, being mounted slidably respectively in the limit slots, being able to extend out of the limit casing with the body sliding in the limit casing and being alternately pressed into the limit casing by the at least one pawl while rotating in a desired direction; one of the limit arms extending from the body striking the pawl while rotating in an opposite direction; a connector being connected to the shaft adjacent to the reverse-rotation preventer, rotating with the shaft and having a proximal end; and a distal end; and a rotating assembly being cylindrical, being mounted rotatably on the housing, being connected to the connector and having an open top end being mounted rotatably around the annular wall of the housing; a closed bottom end being connected to the connector; a through hole being formed coaxially through the closed bottom end of the rotating assembly and being mounted rotatably around the shaft; and a retaining ring being attached securely to the distal end of the shaft rotatably against the closed bottom end of the rotating assembly.