Dawe, Sales Manager for The Strong Company, Dies; PressurePro Partners with PeopleNet; Trojan Worldwide Issued Patent on Battery-Powered Drain Cleaner; Charles Machine Works Acquires HammerHead Trenchless; Mr. Rooter Donates Work to Ronald McDonald House Charities; Ormson, Designer of Fast-Vac, Dies at 66; Waterjet, Municipal Cleaning Expo Aug. 17-19