Pipe joints or couplings – Movable jaw
Patent
1997-04-24
2000-03-14
Nicholson, Eric K.
Pipe joints or couplings
Movable jaw
285323, 285903, 2853827, F16L 3300
Patent
active
060362375
ABSTRACT:
A coupling for connecting a distal end of a corrugated tube with a fitting having a forward coupling end. The coupling includes a collet receivable coaxially over the distal end of the tube and including a circumferential wall portion which extends axially from a forward first end to a rearward second end. The second end is configured as having an outer portion and an inner portion of a diameter smaller than the outer periphery of the tube. The inner portion is configured to be receivable within the root portions of the tube for retaining the collet thereon, and presents a generally rearwardly-facing compression surface. The wall portion is longitudinally dissected through the second end thereof into at least a pair of arcuate, cantilevered segments. Each segment is resiliently yieldable for radial outward movement allowing the tube crest portions to be received through the second end of the wall portion as the collet is advanced forwardly over the distal end of the tube into retention within one of the root portions. A fastening member is journaled over the collet first end and is engagable with the coupling end of the fitting to draw the collet and the distal end of the tube toward the fitting. The fastening member has an inner radial surface extending to a rearwardly-facing shoulder portion configured to abuttingly engage the outer portion of the collet second end for urging the collet rearwardly toward the fitting.
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Molnar, Jr. John A.
Nicholson Eric K.
Parker-Hannifin Corporation
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