A mixing and dispensing system for two reactive fluids, such as two-component polysulfide sealants, in which the dispensed fluids are supplied to a hand operated mixing and dispensing gun through a pair of flexible hoses suspended above the floor from a pivotal boom. The flexible hoses are pivotally...http://www.google.es/patents/US5797546?utm_source=gb-gplus-sharePatente US5797546 - Weight-supported adjustable mixing and dispensing gun for two chemically reactive materials
Weight-supported adjustable mixing and dispensing gun for two chemically ...