Patent ID: 7318688
Filing Date: 2008-01-15
Classification: E01C

Abstract:
1. Screeding apparatus for engaging, moving and compacting wet concrete during formation of a concrete slab in a cavity defined by spaced side forms, said screeding apparatus comprising, in combination: a double-ended, elongated support comprising a rigid framework extending completely across said cavity; support transport structure for transporting said elongated support in a predetermined direction along said spaced side forms; a carriage mounted on said elongated support for movement along said elongated support in a direction transverse to said predetermined direction; a strike board depending from said carriage for engaging wet concrete in said cavity and mounted for movement up and down relative to said carriage; carriage mover structure for moving said carriage and said strike board transverse to said predetermined direction along said elongated support to selectively position said carriage and said strike board in selected alternative positions over said space whereby said strike board is engageable with wet concrete of different width segments of said concrete slab between said spaced side forms; and strike board moving structure operatively associated with said carriage and with said strike board for selectively moving said strike board up or down relative to said carriage within said cavity during transport of said elongated support along said spaced side forms by said support transport structure for varying the distance said strike board enters said cavity.