Abstract: A service device connects to a service port of a pressurized system. The device includes a valve opening member for opening a valve within the port. The device can attach to a service unit for servicing the pressurized system. The system can be an air conditioning or refrigeration system.

Abstract: A method and apparatus for servicing a pressurized system is described. A purge fitting can be used to vent the pressurized system. Venting can release a gas, such as air, from the system. The pressurized system can be a climate control system (e.g., an air conditioning or refrigeration system), a brake system, a hydraulic system, or a service device for servicing a climate control system. The purge fitting allows air that may be trapped in the pressurized system to be vented by depressing a purge actuator, such as a purge button attached to the fitting. The air can be vented from an opening adjacent to the actuator or other orifice. By purging air directly from the system, the amount of air introduced into the system during servicing can be minimized. The invention also features a coupling member that can be compact in size.

Abstract: A method and apparatus for removing fluid from a fluid system. The method or apparatus can include a pressure-reducing source to facilitate fluid removal. The system can be an engine cooling system or other fluid system.

Abstract: A service device connects to a service port of a pressurized system. The device includes a valve opening member for opening a valve within the port. The device can attach to a service unit for servicing the pressurized system. The system can be an air conditioning or refrigeration system.

Abstract: A service device connects to a service port of a pressurized system. The device includes a valve opening member for opening a valve within the port. The device can attach to a service unit for servicing the pressurized system. The system can be an air conditioning or refrigeration system.

Abstract: An apparatus and method of servicing fluid systems by draining, filling, or leak testing the fluid system can employ a pressure-reducing source to perform the desired service. The fluid system can be an engine cooling system, or other fluid system.

Abstract: A system for servicing a fluid system can employ a pressure-reducing source to perform the desired service. The fluid system can be an engine cooling system or other fluid system.

Abstract: A system for servicing a fluid system can employ a pressure-reducing source to perform the desired service. The fluid system can be an engine cooling system or other fluid system.

Abstract: An apparatus and method of servicing fluid systems by draining, filling, or leak testing the fluid system can employ a pressure-reducing source to perform the desired service. The fluid system can be an engine cooling system or other fluid system.

Abstract: A system for servicing a fluid system can employ a pressure-reducing source to perform the desired service. The fluid system can be an engine cooling system or other fluid system.

Abstract: A method and apparatus for servicing a pressurized system is described. A purge fitting can be used to vent the pressurized system. Venting can release a gas, such as air, from the system. The pressurized system can be a climate control system (e.g., an air conditioning or refrigeration system), a brake system, a hydraulic system, or a service device for servicing a climate control system. The purge fitting allows air that may be trapped in the pressurized system to be vented by depressing a purge actuator, such as a purge button attached to the fitting. The air can be vented from an opening adjacent to the actuator or other orifice. By purging air directly from the system, the amount of air introduced into the system during servicing can be minimized. The invention also features a coupling member that can be compact in size.

Abstract: A service device connects to a service port of a pressurized system. The device includes a valve opening member for opening a valve within the port. The position of the valve opening member within the connector is adjustable or self-adjusting. The adjustable valve opening member allows the valve in the service port to be opened fully by the connector over a range of valve positions within the port. The device can attach to a service unit for servicing the pressurized system. The system can be an air conditioning or refrigeration system.

Abstract: A service port connector for connecting to a service port of a pressurized system is described. The connector includes a valve opening member for opening a valve within the port. The position of the valve opening member within the connector is adjustable. The adjustable valve opening member allows the valve in the service port to be opened fully by the connector over a range of valve positions within the port. The connector can attach to a service device for servicing the pressurized system. The system can be an air conditioning or refrigeration system.