Locking device for a fluid plug-in connection between a fluid pi

Details Locking device for a fluid plug-in connection between a fluid pi Locking device for a fluid plug-in connection between a fluid pi

1989-05-22

1990-07-03

Arola, Dave W.

Pipe joints or couplings

With assembly means or feature

Particular tool-engaging means or with tool

285305, F16L 3500

Patent

active

049385100

ABSTRACT:
A locking device for a plug-in connection between a fluid pipe, provided with a shaped-on radially protruding abutment, and a connecting part utilizes a clamp, which can be guided in the connecting part, two branches of the clamp overlapping the abutment of a correctly plugged-in fluid pipe in order to secure the plug-in connection against axial separation. A guide slot, for receiving the clamp, opens along its length towards a plug-in side of the connecting part in order to prevent incorrectly produced plug-in connections, i.e. unsecured conditions, while the clamp itself is provided with a guard which can be displaced in the elongated opening of the guide slot. This guard ensures that the abutment of the plugged-in fluid pipe is either overlapped by the clamp branches, in the case of a correct plug-in connection, or remains visible above the plug-in side of the connecting part, in the case of an incorrectly executed plug-in connection.

REFERENCES:
patent: 1881980 (1932-10-01), Thomas, Jr.
patent: 3154327 (1964-10-01), Rothschild
patent: 3512808 (1970-05-01), Graham
patent: 4423892 (1984-01-01), Bartholomew
patent: 4453747 (1984-06-01), Bimba
patent: 4723796 (1988-02-01), Nattel
Fluid Power, New Products by Michael S. Weil, vol. 35, No. 5, May 1982, p. 28.
IBM Technical Disclosure Bulletin, vol. 20, No. 9, Feb. 1978, pp. 3662 and 3663.

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