Importance

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Abstract

A quick acting blast aerator comprising a spring-less actuator triggered by an exhaust valve. The actuator valve comprises a tubular body, an exhaust vent defined in the body, a dampening passageway, and a piston slidably disposed therewithin for movement between a tank filling position and a displaced, air discharge position. Preferably the piston has a projecting dampener which engages the dampening passageway. The trigger valve comprises a rigid, cylindrical housing with a hollow interior having a plurality of vent orifices radially disposed about its periphery. A pair of resilient bands surrounding the housing cover the vent orifices to form a one-way check valve. A resilient, hollow piston coaxially, slidably disposed within the trigger housing has a hollow internal chamber containing a ball valve. Mutual cooperation of the trigger piston and its internal valve govern pneumatically control the actuator.

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First Claim