High pressure coupling with provision for preventing separation

Details High pressure coupling with provision for preventing separation High pressure coupling with provision for preventing separation

1990-03-09

1991-10-22

Cuomo, Peter M.

Pipe joints or couplings

With means blocking release of holding means

Thread lock

285 94, 285319, 285921, F16L 5500

Patent

active

050589300

ABSTRACT:
A high pressure coupling is provided which comprises an adjustment nut with nipples extending therefrom in axial extension of one another. The nipples are provided with exterior threads and with conically shaped ends which are respectively engaged by ferrules. Each of these ferrules is engaged by a coupling member having an interior thread which is in engagement with the threads provided on the associated nipple. Adjustment of the threads operates to pull the ferrules against the associated nipples. On each nipple is mounted a frusto-conical ramp adjacent which is provided an annular groove. Each coupling member is provided with a cylindrical arrangement of spaced fingers or a thin wall cylinder having protruding tips directed radially inwards. These fingers or the cylinder with their respective tips ride up the ramps until the tips extend beyond the ramps and are loosely accommodated in their respectively associated annular grooves. The accommodation of the tips in the annular grooves serves to lock the associated ferrules to the associated nipples to prevent accidental detachment thereof. The fingers pressing against the ramps serve to vector forces to remove play from between the inter-engaged threads.

REFERENCES:
patent: 763317 (1904-06-01), Nelson
patent: 1914736 (1933-06-01), Coutu
patent: 2523578 (1950-09-01), Lewis
patent: 3135537 (1964-06-01), Scott
patent: 3418010 (1968-12-01), Buckner
patent: 3915478 (1975-10-01), Al et al.
patent: 4451069 (1984-05-01), Melone
patent: 4705302 (1987-11-01), Beiley

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