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U.S. Department of Energy
Office of Scientific and Technical Information

Air conditioner refrigerant check guide

Patent ·
OSTI ID:5465633
A refrigerant system pressure check gauge adapter is described comprising: an adapter mold formed of semi rigid yet resiliently flexible plastic having a bottom tube receivable in the valve head opening of a pressure gauge; internal shoulder means within the bottom tube limiting the extent of insertion of a gauge valve pin into the bottom tube; an opening in the top portion of the adapter shaped to fit on and over the low pressure suction side valve fitting of a refrigerant system; projection means within the adapter top portion opening positioned to engage the valve stem of the refrigeration system suction side valve fitting so that as the pressure gauge is pushed toward the refrigerant valve fitting received in the adapter top portion opening the refrigeration system valve is opened and refrigeration material gases pass from the refrigeration system through internal opening passages through the adapter to the pressure gauge to provide a refrigerant gas charge pressure reading for the refrigerant system.
Assignee:
NOV; EDB-86-150264; NOV-85-017772
Patent Number(s):
US 4599903
OSTI ID:
5465633
Country of Publication:
United States
Language:
English