Patent ID: 8152409

Claim:
An apparatus for screeding concrete to produce a level finished surface comprising: a rigid frame assembly; a telescopic boom assembly secured directly to said frame assembly whereby said boom assembly is leveled by leveling said frame assembly; said telescopic boom having an exterior boom secured directly to said frame assembly, an intermediate boom disposed inside said external boom, and an interior boom disposed inside said intermediate boom, wherein said intermediate boom is movable relative to said exterior boom, and wherein said interior boom is movable relative to both said exterior and said intermediate booms; a pair of leveling plates secured to opposed sides of said exterior boom at a forward end thereof, said leveling plate comprising a pair of opposed upper and lower horizontal roller bearings for engaging a top and bottom exterior surface of said intermediate boom respectively, said upper roller bearing being vertically adjustable thereby permitting leveling of said intermediate boom with respect to said exterior boom, said leveling plates having a plurality of slots therein for engagement with a fastener secured to said exterior boom, whereby said leveling plates may be vertically adjusted; and a set screw extending through an exterior surface of said exterior boom and threadably engaged with an aperture in a leveling plate, whereby rotation of said set screw vertically adjusts said leveling plate; and a screeder head assembly having a plurality of vertically oriented alignment poles secured to said telescopic boom assembly and a screeder head secured to said alignment poles.