Patent ID: 9211554
Filing Date: 2015-12-15
Classification: A61B,B01F,B05B

Abstract:
1. A self-contained, hand-held spray dispensing device for dispensing one or more liquid material(s), the dispensing device comprising: a first and a second liquid container having a discharge port and a piston movably disposed therein, each piston having a working surface thereon, each piston being responsive to a motive force imposed on the working surface thereof to displace within its liquid container, thereby to cause a liquid material in that liquid container to be ejected from the discharge port, a housing; a first and a second liquid discharge line disposed within the housing, each of the first and second liquid discharge lines having an inlet end and an outlet end; a container support arrangement able to receive and to support the first and second liquid containers within the housing such that the discharge port of each of the first and second liquid containers is disposed in fluid communication with the respective inlet end of the first and second liquid discharge lines; a cartridge support arrangement disposed within the housing, the cartridge support arrangement being able to receive and to support a cartridge holding a pressurized motive fluid, the cartridge being a first source of the pressurized motive fluid; a first pressurized fluid line able to convey the pressurized motive fluid from the cartridge receivable within the housing into fluid communication with the working surface on the piston disposed in the respective first and second liquid containers receivable within the housing; a door capable of being positioned in an open position and a closed position, when in the closed position a swing axis of the door being offset by an offset distance from a central axis of the cartridge in the direction of the closed position of the door, wherein positioning the door in the closed position forces the cartridge into contact with a point on an interior of the door to prevent the door from being opened until the pressurized motive fluid has been expelled from the cartridge, wherein the point is located along the central axis of the cartridge; a valve able to control the flow of the pressurized motive fluid through the first pressurized fluid line; and a trigger operatively associated with the valve, the trigger being movable from a rest position to a first operational position, wherein when the trigger is in the first operational position, the trigger is operative to open the valve to permit the pressurized motive fluid from the cartridge receivable within the housing to flow through the first pressurized fluid line into each container receivable within the housing to generate the motive force on the working surface of the piston therein, thereby causing each piston to eject the liquid material in the container through the discharge port thereof.