Pipe joints or couplings – With means blocking release of holding means – Auxiliary latch
Patent
1979-04-05
1980-09-16
Arola, Dave W.
Pipe joints or couplings
With means blocking release of holding means
Auxiliary latch
285312, 285317, 403317, F16L 5500
Patent
active
042225930
ABSTRACT:
A coupling having male and female coupling members, at least one coupling lever pivotally mounted on the female coupling member and having a cam portion engageable in a groove in the male coupling member for releaseably coupling the male and female coupling members together, and at least one safety locking device for locking the coupling lever against accidental displacement from its coupling position. The safety locking device includes a reciprocally mounted locking pin or member, a spring for biasing the locking pin to a locking position where it overlies the coupling lever in its coupling position to block movement of the coupling lever to its uncoupling position, and a manually manipulatable lever member engaging the locking pin and pivotal to retract the locking pin to a lock-release position.
REFERENCES:
patent: 965998 (1910-08-01), Evans
patent: 2023263 (1935-12-01), Blume
patent: 3124374 (1964-03-01), Krapp
patent: 3439942 (1969-04-01), Moore et al.
patent: 3976313 (1976-08-01), Lauffenburger
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