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

1993-07-08

1995-02-14

Reese, Randolph A.

Pipe joints or couplings

With means blocking release of holding means

Thread lock

285 94, 285319, 285921, 411223, 411121, F16L 5500

Patent

active

053888669

ABSTRACT:
A high pressure fitting 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 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 and are loosely accommodated in their respectively 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. In some embodiments, the ferrule can be omitted.

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