Coupling with lock indicator

Details Coupling with lock indicator Coupling with lock indicator

1987-10-30

1988-10-11

Arola, Dave W.

Pipe joints or couplings

With means blocking release of holding means

Auxiliary latch

285 93, 285316, F16L 3500

Patent

active

047766140

ABSTRACT:
A coupling fitting utilizing radially moving detents operated by an axially displaceable locking sleeve employs a safety lock lever pivotally mounted upon the locking sleeve engagable with a reference surface on the fitting when the locking sleeve is in the locked condition to lock the sleeve and give both a visual and physically discernible indication of the condition of the locking sleeve. The safety lever includes a handle which conforms to the configuration of the locking sleeve when the sleeve is in the release position, and the lever handle extends from the configuration of the locking sleeve in the sleeve lock position. Preferably, two locking safety levers are mounted upon the locking sleeve at diametrically opposed locations.

REFERENCES:
patent: 1613644 (1927-01-01), Costello
patent: 3084713 (1963-04-01), Parrish
patent: 3359015 (1967-12-01), Zahuranec
patent: 4150846 (1979-04-01), Fleischer

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