Patent ID: 7004676

Claim:
Apparatus for smoothing the surface of freshly poured concrete, including: a) a structural frame; b) drive means centrally attached to said structural frame for providing rotational motion to said structural frame for providing rotational motion to said structural frame; c) elongate steering means attached to said structural frame for controlling the direction of movement of said structural frame; d) a plurality of longitudinally extending blades removably coupled to said structural frame, each of said blades extend from a central pivot outwardly a predetermined distance, said plurality of blades being rotatably connected at one end thereof to said drive means, and being adapted for variation in pitch of said blades during operation; e) speed control means for controlling the speed of rotation of said drive means; f) pitch control means for controlling the pitch of said longitudinal blades wherein said pitch control means comprises: 1) a pitch control motor for adjusting the pitch of said plurality of longitudinally extending blades; and 2) a belt for coupling said pitch control motor to said plurality of longitudinally extending blades to allow the pitch control motor to adjust the pitch of the longitudinally extending blades; and g) remote operational control means for operating both the speed of said central drive means and for controlling the pitch of said longitudinal blades.