Refrigeration – Refrigeration producer – With refrigerant treater
Reexamination Certificate
2005-06-07
2005-06-07
Doerrler, William C. (Department: 3744)
Refrigeration
Refrigeration producer
With refrigerant treater
C062S475000, C062S512000, C062S129000
Reexamination Certificate
active
06901770
ABSTRACT:
A refrigerant filter/dryer assembly isolates, removes, and replaces a filter/dryer core, and allows the vapor-compression heat pump system to continue to operate while the filter/dryer is being replaced. The refrigerant flow is automatically by-passed and the filter/dryer core is isolated for removal. The filter/dryer easily connects back into the refrigerant flow path. An indicator can be provided for indicating the remaining useful life of the filter/dryer while it is being used in the system.
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Gibson Todd
Scaringe Robert
Crowell & Moring LLP
Doerrler William C.
Mainstream Engineering Corporation
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