Patent ID: 8672364
Filing Date: 2014-03-18
Classification: B05B,F16L,Y10T

Abstract:
1. A quick disconnect device for releasably connecting a hand held pressurized sprayer tank to a portable pump assembly selected from an electric pump module and a power pack assembly, said quick disconnect device enabling the portable pump assembly to convey compressed gas into the sprayer tank without transferring gas into the portable pump assembly, said quick disconnect device comprising: a tubular body having an internal passageway for conveying gas into the sprayer tank from the portable pump assembly, a first plunger member mounted within said internal passageway for reciprocal movement between the sprayer tank and the portable pump assembly, a second plunger member mounted within said internal passageway for reciprocal movement between the sprayer tank and the portable pump assembly, a first resilient member urging said first plunger member away from the sprayer tank to prevent gas from flowing into the sprayer tank, a second resilient member urging said second plunger member toward the sprayer tank to prevent gas from flowing out of the sprayer tank, said first plunger member being movable toward the sprayer tank to overcome the spring constant of said first resilient member to direct gas from the portable pump assembly into the sprayer tank, and the internal pressure of the sprayer tank moving said second resilient member to overcome the spring constant of said second resilient member to relieve pressure from the sprayer tank.