US Patent 7144195 Asphalt compaction device

An asphalt compaction device including a primary compaction plate and a secondary compaction plate for concentrating force, resulting in an increased compaction rate. The secondary compaction plate may be either rotated or extended into its operative position. The asphalt compaction device may include a single primary compaction plate intended to be moved and steered by a user. Alternatively, the asphalt compaction device may include an articulated machine with multiple primary compaction plates.