Container and stirrer for paint sprayer

Claim 1

In a combination paint container and stirrer for use with a paint spray gun and an air supply under pressure: a. a cup; and b. a removable lid having 1. fastening means for securing the lid to the cup, 2. a turbine chamber, 3. an air inlet and an air outlet to the turbine chamber, 4. a control valve in the air inlet, 5. a bore for receiving a shaft, and 6. a shaft journalled in the bore, and having a. a turbine wheel at its upper end rotatably positioned in the turbine chamber and b. a paddle wheel at its lower end adapted to rotate near the bottom of said cup, 7. vent means for selectively passing air from the turbine chamber to the cup comprising a. an upper bushing fixed in the bore and surrounding the turbine shaft, and having a lower surface, b. an upper O-ring surrounding, and in sealing relation to, the shaft and free to slide longitudinally thereon, and selectively contact the lower surface of the upper bushing, and positioned on the shaft immediately below the upper bushing, c. an upper spring retainer surrounding the shaft and concentric therewith, and having an upper surface adapted to contact the upper O-ring at its lower surface, d. a helical compression spring surrounding the shaft and in spring engagement with the upper retAiner and adapted to exert a force against the upper retainer, forcing it upwardly, e. a lower spring retainer engaging the helical compression spring and adapted to move longitudinally with respect to the shaft, f. a lower O-ring in contact with the shaft, and adapted to slide thereon, positioned on the shaft below the lower spring retainer, and g. a lower bushing surrounding and journalling said shaft, and fixed in the bore, and having radial air passages extending therethrough, wherein said upper and lower bushings are fixedly secured in the lid bore, and said first upper and lower O-rings and upper and lower spring retainers, are adapted to move longitudinally along said shaft, and wherein said upper O-ring is adapted to selectively slide into sealing relationship with the shaft and upper bushing when no air is needed in the cup, and selectively slide away from the upper bushing wherein air flow is permitted between the turbine chamber and the cup when air is needed in the cup, 8. an aspirator tube supported on the lid and extending into the cup adjacent the paddle wheel, and 9. fittings on the lid for attachment to the paint spray gun and the air supply.