Patent ID: 6298886
Filing Date: 2001-10-09
Classification: B60H,F25B,Y10T

Abstract:
A dispensing tool assembly adapted to be releasably connected to a refrigerant system having a pressure responsive inlet valve and for first evacuating the system and then filling the system with a refrigeration fluid, said tool assembly comprising a body defining an evacuation port adapted to be connected to a suction line and a fluid inlet port adapted to be connected to a source of the fluid, said body having an opening with a resilient sealing ring for receiving and sealing with the inlet valve, a fluid actuating coupling mechanism for releasably securing said body to said inlet valve, said body having a plurality of elongated inclined valve chambers circumferentially spaced around a center axis of said tool body and converging towards said axis and said opening, an elongated valve member within each of said valve chambers and having a lower end portion with a closure member for said chamber, each of said valve members connected to a corresponding fluid actuated piston, and said body having corresponding pressurized fluid receiving ports connected to said fluid actuated pistons.