Metal working – Method of mechanical manufacture – Gas and water specific plumbing component making
Patent
1986-12-15
1990-05-15
Callaghan, Thomas F.
Metal working
Method of mechanical manufacture
Gas and water specific plumbing component making
285387, F16L 1900
Patent
active
049245694
ABSTRACT:
A method of repairing a leaking coupling between an air conditioning cooling coil and its associated expansion valve using a split clamp-on coupling nut. The nut consists of two mirror-image halves, the two halves being joined together by a pair of screws. The joined together halves provide a passageway sized and partially threaded to accommodate the flanged end of the cooling coil pipe and the threaded end of the expansion valve pipe when these two pipes are aligned along a common axis and the end of the expansion valve pipe abuts against the flange of the cooling coil pipe.
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Callaghan Thomas F.
Johnson Merrill N.
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