Patent ID: 6978636

Claim:
A device for servicing an automobile air conditioner, comprising: a pressurized container of at least one chemical addable to the air conditioner, said container having a first valve; an actuator coupled to said first valve that selectively opens said first valve; a hose having a first end and a second end, said first end connected to said actuator and said second end coupleable to a service port of the air conditioner, said hose further comprising a first section of hose and a second section of hose; a T-connector disposed in said hose having an inlet in communication with said first end of said hose, a first outlet, a second outlet in communication with said second end of said hose, and a check valve, said first section of hose being connected between said actuator and said inlet and said second section of hose being connected between said second outlet and a coupler connectable to the automobile air conditioner service port, said T-connector further including a main body from which said inlet and said second outlet project, said inlet including a first stem rotatably disposed in one end of said main body, said second outlet including a second stem rotatably disposed in an opposite end of said main body, said main body and a pressure gauge being rotatable with respect to said hose; and said pressure gauge connected to said first outlet of said T-connector and in communication with said second end of said hose, wherein when said second end is coupled to an automobile air conditioner service port and said actuator is not activated, said pressure gauge measures a pressure of the air conditioner, and when said second end is coupled to an automobile air conditioner service port and said actuator is activated, said at least one chemical is released from said pressurized container and into the air conditioner via said hose and the service port, and wherein said check valve is biased closed to enable flow in from said second outlet to said first outlet to enable communication between the service port and said gauge. and wherein when said actuator is activated, said pressurized chemical released from said container overcomes the bias of said check valve and exits said T-connector via said second outlet.