Abstract: A device for cleaning surgical instruments uses water from a main water supply wherein the device is capable of delivering a low volume of water at high pressure to the surgical instrument. The device has a pump for boosting a water solution pressure to approximately 85 psi before delivering the water solution to a spray nozzle. A manually operated dual injection system introduces a detergent or an instrument milk solution with the water through a venturi valve on the inlet side of the pump. Air bellows in the form of foot pedals actuate the dual injection system.

Abstract: A servicing device is shown for recovering and charging refrigerant in a cooling system of the type having a compressor for circulating compressible refrigerant in a closed, pressurized system between a condenser and an evaporator to provide a cooling effect. The servicing device includes a storage container which has a fill port which is adapted to be connected by a fluid conduit to the closed, pressurized system being serviced. Heat exchange coils located within the container are cooled by a heat exchange system to create a low pressure atmosphere within the container and draw refrigerant from the closed, pressurized system into the container. The heat pump system has reversible valves to reverse the flow of auxiliary refrigerant being circulated through the system.