Fluid-conveying coupling with safety locking device

Details Fluid-conveying coupling with safety locking device Fluid-conveying coupling with safety locking device

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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