Powered rotary screed

A rotary screed for creating a flat surface by screeding uncured materials, comprising:

• a. a frame wherein the frame includes two screed modules that are coupled together at a medial plate and a drive module coupled to each distal end of the coupled screed modules, each drive module comprising opposed plates having the first and second drive tubes rotatably coupled thereto;
• b. a strike tube rotatably coupled to the medial plate and one drive module and a strike tube coupled to the medial plate and the other drive module and each strike tube located proximate a leading edge of the frame;
• c. first drive tubes rotatably coupled to respective drive modules proximate a trailing edge of the frame;
• and
• d. second drive tubes rotatably coupled to respective drive modules and located between the first drive tube and the strike tube so that when the rotary screed is screeding the first drive tube and the second drive tube propel the screed and the strike tube screeds uncured material by applying pressure to the material thus pushing excess material forward and providing a flat surface.

A rotary screed for screeding viscous material, comprising:

• a. a frame having a plurality of plates including a medial plate and distal plates and a stringer extending from the medial plate to each distal plate;
• b. a strike tube rotatably coupled to at least two plates proximate a leading edge of the frame;
• c. a first drive tube rotatably coupled to at least two plates proximate a trailing edge of the frame;
• d. a second drive tube rotatably coupled to at least two plates, wherein the second drive tube includes an adjustment that controls an amount of pressure of the strike tube on the concrete form when the screed is screeding the viscous material.

A powered rotary screed, comprising:

• a. at least two drive modules, each drive module having at least two plates and a first drive tube rotatably coupled to the plates and second drive tube rotatably coupled to the plates wherein the drive tubes are rotatably driven to propel the screed;
• b. a medial plate;
• and
• c. at least two screed modules, each screed module having a rotatable screed tube wherein the screed modules are coupled to the medial plate and the drive modules are coupled to the screed modules at distal ends thereof, each screed module including a screed tube that is rotatabaly coupled to the medial plate and a distal plate associated with a drive module such that each screed tube substantially extends the length of a respective screed module and drive module.