Pipe joints or couplings – With means blocking release of holding means – Auxiliary latch
Patent
1997-11-24
1999-06-15
Nicholson, Eric K.
Pipe joints or couplings
With means blocking release of holding means
Auxiliary latch
285 85, 285312, 285 81, F16L 5500
Patent
active
059114452
ABSTRACT:
A hose coupling which includes a coupling body having two side openings and two pair of lugs at two opposite sides of each side opening, two locking levers pivotably coupled to the lugs at two opposite sides of the coupling body by a respective pivot and turned between a locking position to lock a plug/male connecting element in the coupling body and an unlocking position to release the plug/male connecting element, two retainer plates respectively coupled to the pivots and disposed outside the side openings of the coupling body and adapted to stop the locking levers in the locking position, and two spring and pin sets respectively mounted in stepped holes on the locking levers and adapted to engage with retainer plates in stopping the locking levers in the locking position, each spring and pin set having a knob for release control.
REFERENCES:
patent: 554666 (1896-02-01), Feltner
patent: 789541 (1905-05-01), Hayes
patent: 808446 (1905-12-01), Gill et al.
patent: 966925 (1910-08-01), Kittredge
patent: 4222593 (1980-09-01), Lauffenburger
patent: 5295717 (1994-03-01), Chen
patent: 5338069 (1994-08-01), McCarthy
patent: 5435604 (1995-07-01), Chen
patent: 5722697 (1998-03-01), Chen
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