MidOcean Partners has acquired a "significant equity position" in Noranco Inc., a Toronto-based maker of metal components, kits and assemblies for landing gear, aero structure, and aero engine applications to the aerospace industry. No financial terms were disclosed. www.noranco.com
Summit Materials has acquired Westroc Inc., a Pleasant Grove, Utah-based aggregates and ready-mix concrete company. No financial terms were disclosed. Summit Materials was formed in 2009 by The Blackstone Group and Silverhawk Capital Partners. www.summit-materials.com
Trivest Partners has sold Allegiance Security Group, a manned MORE