Refrigeration – With means for charging closed refrigeration producing system
Reexamination Certificate
2005-01-18
2005-01-18
Doerrler, William C. (Department: 3744)
Refrigeration
With means for charging closed refrigeration producing system
C062S149000, C062S150000, C062S077000, C062S085000, C062S231000, C137S625470, C137S625460
Reexamination Certificate
active
06843070
ABSTRACT:
A refrigerant handling system includes coupling apparatus for coupling a refrigerant processing apparatus to an automotive air-conditioning system. The coupling apparatus includes a ball valve including a common port and at least two selectable ports, and a valve member manually movable among a closed condition, wherein the common port is connected to neither selectable port, and three open conditions wherein the common port is connected, respectively, to each of the selectable ports and both of the selectable ports. The common port of the valve is connected to the refrigerant processing apparatus, while the selectable ports are connected, respectively, to conduits for providing connections to the high-pressure and low-pressure sides of the air-conditioning system.
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Doerrler William C.
Seyfarth Shaw LLP
Shulman Mark S.
Snap-on Technologies, Inc.
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