Transportable refrigerant transfer unit and methods of using the

Details Transportable refrigerant transfer unit and methods of using the Transportable refrigerant transfer unit and methods of using the

1990-11-26

1992-12-15

Makay, Albert J.

Refrigeration

Processes

Assembling, charging, or repairing of refrigeration producer

62292, 62149, F65B 4500

Patent

active

051706326

ABSTRACT:
A hand-transportable unit for transferring refrigerants between containers includes a pump to remove refrigerant from a first container. The pump is driven by a pneumatic motor. The pump is capable of transferring refrigerant in liquid form, vapor form, or simultaneously in both forms. A condenser for cooling refrigerant is in fluid communication with the pump. The unit also includes a compressor for driving the pneumatic motor to operate the pump. Optionally, the pump may be powered from an external source of compressed gas. The other components of the unit are mounted to a handcart including a frame and wheels to facilitate movement of the unit. In a preferred embodiment, unit is configured for self-evacuation by use of the pump in order to avoid cross-contaimination of different refrigerants during subsequent use of the unit.

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