Coded coupling
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United States of America Patent
Stats
-
May 19, 1987
Grant Date -
N/A
app pub date -
Mar 4, 1985
filing date -
Mar 4, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A coupling assembly having abutting surfaces held together in sealed relationship by cooperable male and female nuts includes a gland member having one of the abutting surfaces thereon and being receivable in the male nut. At least one inwardly extending projection on the male nut is receivable in an external longitudinal groove in that portion of the gland member which is receivable in the male nut. Couplings for different fluids have different projection and groove arrangements such that a male nut having a given projection arrangement will receive only a gland member having a matching groove arrangement.
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