Conduit coupling structure

Details Conduit coupling structure Conduit coupling structure

1975-02-18

1976-07-20

Arola, Dave W.

Pipe joints or couplings

Packed

Wedge

2853827, F16L 1908

Patent

active

039703371

ABSTRACT:
An improvement is disclosed in a tube coupling device including first and second threadedly engageable coupling members and an annular sleeve received on the tube and having an end engageable with one of the members and contractible about the tube upon assembly of the coupling members. The improvement is defined by providing the sleeve with a second end having a diameter and a length such that the threaded coupling members cannot be interengaged when the sleeve is reversely oriented on the tube.

REFERENCES:
patent: 2316711 (1943-04-01), Parker et al.
patent: 2727763 (1955-12-01), Ziep
patent: 2857176 (1958-10-01), McTaggart et al.
patent: 3201153 (1965-08-01), Currie
patent: 3830532 (1974-08-01), Roberts

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