Torque tight locking device

Details Torque tight locking device Torque tight locking device

1995-07-12

1996-06-11

Arola, Dave W.

Pipe joints or couplings

With assembly means or feature

Particular tool-engaging means or with tool

285 90, 285 92, 285 93, 285328, 285353, 411120, F16L 3500

Patent

active

055249361

ABSTRACT:
A locking device for preventing relative rotation of pretorqued compression nuts used in face seal mechanical fittings includes an inner member having a cavity sized to slide onto and non-rotatably enclose the male or first nut of the fitting, an outer member having a first cavity sized to rotatably receive the inner member and a second cavity sized to slide onto and non-rotatably enclose the female or second nut of the fitting, and at least one set screw projecting inwardly through a threaded borehole in the outer member to non-rotatably engage and lock the inner member.

REFERENCES:
patent: 315895 (1885-04-01), Brady
patent: 2190076 (1940-02-01), Love
patent: 5139289 (1992-08-01), Koss
patent: 5222768 (1993-06-01), Hofer et al.
patent: 5312139 (1994-05-01), Marks et al.
patent: 5350201 (1994-09-01), Bynum
patent: 5362111 (1994-11-01), Harbin
patent: 5388866 (1995-02-01), Schlosser
patent: 5466014 (1995-11-01), Cummings
Cajon Brochure, No. Ca-792, Sep. 1994 entitled VCR Metal Gasket FaceSeal Fittings, pp. 1 and 2.

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