Pipe joints or couplings – With assembly means or feature – Particular tool-engaging means or with tool
Patent
1992-06-01
1993-11-09
Arola, Dave W.
Pipe joints or couplings
With assembly means or feature
Particular tool-engaging means or with tool
285319, 285422, 285921, 285347, F16L 3500
Patent
active
052596508
ABSTRACT:
A releasable fast-action coupling has a female part formed centered on an axis with an axially outwardly open bore having a smooth-walled inner portion of predetermined diameter and an outer portion of somewhat greater diameter and formed with an internal screwthread. A male tube part having an end engageable in the bore has an inner portion engageable in the inner bore portion and formed with a radially outwardly open groove, an outer portion engageable in the outer bore portion when the inner tube portion is in the inner bore portion and formed with a radially outwardly open groove, and a radially outwardly projecting ridge axially inwardly engaging the bore shoulder when the tube part is fitted in the bore. An elastic seal ring seated in the groove of the tube inner portion radially outwardly engages the bore inner portion when the tube part is fitted in the bore. A coupling sleeve seated in the groove of the tube outer portion is rotatable on the tube part and formed with a plurality of angularly spaced, radially outwardly, and axially outwardly projecting tabs braced axially outwardly against the screwthread of the bore outer portion when the tube part is fitted in the bore.
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Gnauert Werner
Hochstein Detlef
Arola Dave W.
Dubno Herbert
Friedrich Grohe Aktiengesellschaft
Wilford Andrew
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