High density concrete placer

A high density concrete placer longitudinally translatable along a pair of parallel oriented support rails positioned adjacent to an area in which wet concrete has been poured comprising:

• a. a bridge having first and second ends;
• b. first and second roller assemblies coupled to the first and second ends of said bridge and contacting the support rails for supporting said bridge above the upper surface of the wet concrete and for enabling said bridge to be longitudinally translated along the support rails;
• c. means coupled to the first and second ends of said bridge for controlling the elevation of said bridge with respect to the surface of wet concrete;
• d. a table having front and rear sides and including:
• i. a subframe having a front side pivotally coupled to the front side of said table;
• ii. a plurality of immersible vibrator units coupled at spaced apart intervals to the rear side of said subframe and descending vertically downward therefrom for vibrating a segmental width of said wet concrete, wherein said segmental width is substantially less than the width of said concrete;
• iii. means coupled to said table and to said subframe for vertically displacing the rear side of said subframe between a first and a second position wherein said vibrator units are elevated above the surface of the wet concrete in the first position and are immersed in the wet concrete in the second position;
• and
• e. means coupled to said bridge and to said table for enabling said table to be incrementally laterally translated between the first and second ends of said bridge;
• whereby said table may be laterally translated an incremental distance along said bridge when said vertical displacing means is in the first position;
• a segmental width of said concrete is vibrated when said vertical displacement means is in the second position;
• and the entire width of said wet concrete may be vibrated after at least one lateral translation of said table with respect to said bridge.

A high density concrete placer longitudinally translatable along an area in which wet concrete has been poured comprising:

• a. a bridge having first and second ends;
• b. means for supporting said bridge above the surface of the wet concrete and for permitting said bridge to be longitudinally translated over the surface of the wet concrete;
• c. means coupled to the first and second ends of said bridge for adjusting the elevation of the first and second ends of said bridge;
• d. a table including a plurality of immersible vibrator units coupled at spaced apart intervals along one side of said table and descending vertically downward therefrom for vibrating a segmented width of said wet concrete, wherein said segmented width is substantially narrower than the width of said wet concrete;
• e. means coupled to said bridge and to said table for enabling said table to be incrementally laterally translated between the first and second ends of said bridge;
• f. means coupled to said table for vertically displacing said vibrator units between a first and a second position wherein said vibrating units are positioned above the surface of the wet concrete in the first position and are immersed in the wet concrete in the second position;
• and
• g. means coupled to said table for longitudinally displacing said vibrator units between a first and a second longitudinal position, whereby said vibrator units are longitudinally translated between the first and second positions by said longitudinal displacing means after being elevated into the first position by said vertical displacing means and the entire width of said wet concrete may be vibrated after at least one lateral translation of said table with respect to said bridge.

A high density concrete placer longitudinally translatable along an area in which wet concrete has been poured comprising:

• a. a bridge having first and second ends and a length
• greater than the width of wet concrete;
• b. means for supporting said bridge above the surface of the wet concrete and for permitting said bridge to be longitudinally translated over the surface of the wet concrete;
• c. a table having a width less than half the width of said bridge and including a plurality of immersible vibrator units coupled at spaced apart intervals along one side of said frame and descending vertically downward therefrom for vibrating a segmented width of said set concrete;
• d. means coupled to said bridge and to said table for incrementally laterally translating said table between the first and second ends of said bridge;
• and
• e. means coupled to said table for vertically displacing said vibrator units between a first and a second position, wherein said vibrator units are positioned above the surface of the wet concrete in the first position and are immersed in the wet concrete in the second position;
• whereby said table may be laterally translated an incremental distance along said bridge when said vertical displacing means is in the first position;
• a segmental width of said concrete is vibrated when said vertical displacement means is in the second position;
• and the entire width of said wet concrete may be vibrated after at least one lateral translation of said table with respect to said bridge.