Pipe joints or couplings – Elbow
Patent
1996-06-03
1997-11-04
Arola, Dave W.
Pipe joints or couplings
Elbow
285308, 285322, 285331, 285918, F16L 2106
Patent
active
056831200
ABSTRACT:
A fitting assembly for a releasable connection with a distal tubing end. The fitting includes a generally annular body formed as having an internal bore with a radial surface describing an internal gland having a forward end wall defining a contact edge with the radial surface of the bore. A collet is journalled coaxially within the bore for translational movement within the gland of the body as having a generally cylindrical wall portion expandable to receive the tubing end therethrough. The wall portion is divided longitudinally into at least a pair of arcuate, cantilevered segment extending resiliently between respective distal and proximal ends. Each of the segments has an inner projection disposed adjacent the distal end thereof, and an outer camming portion which extends from a first rearwardly-inclined ramp surface to a generally-contiguous second rearwardly-inclined ramp surface. The collet is slidably moveable within the bore of the body from along a rearward locus accommodating the radial outward movement of the segments resiliently expanding the wall portion for the insertion and removal of the tubing end through the collet member, and first and second forward loci. Along the first and second loci, respectively, the first and second ramp surfaces are disposed in force-transmitting engagement with the contact edge of the body member transferring first and second normal force components to the segment projections gripping the outer surface of the tubing between the segments.
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Drawing dated Aug., 1995 of Parker-Hannifin Corporation for Male Elbow Swivel--Part No. 169PMT-6-4, and Drawing dated May 1995 of Parker-Hannifin Corporation for Sleeve--Part No. 2595-61003.
Drawing dated Jul., 1995 of Parker-Hannifin Corporation for Male Connector--Part No. 68PL-6-4, and Drawing dated Apr., 1996 for Male Connector--Part No. 68PMT-6-4.
Literature of Nycoll Poly-matic Instant Fittings.
Literature of SMC Pneumatics, Inc. One Touch Fitting.
Literature of Weatherhead Push Connect Brass Fittings.
Literature of Camozzi Super Rapid Fittings.
Literature of Mazzer Industries Mazzer-Loc Insta-Brass Fittings.
Literature of Imperial Eastman OmegaFlo Push-to-Connect/Push-to-Release Tube Fittings.
Literature of Legris LF3000 Instant Fitting System.
Literature of Norgren Pneufit Series 12 Push-In Fittings.
Literature of Alkon Push-In Tube Fittings.
Literature of Nihon Pisco for Tubing.
Literature of WEO Hydraulic AB for Couplings.
Brock David J.
Gilbert Kimberly J.
Parrish Lyle E.
Arola Dave W.
Molnar John A.
Parker-Hannifin Corporation
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