G - Physics
01
M
116/48
G01M 3/08 (2006.01) F16L 55/115 (2006.01) G01M 3/02 (2006.01)
Patent
CA 1146019
ABSTRACT OF THE DISCLOSURE A fitting for mounting to the ends of smooth wall tubes, is disclosed for leak testing expanded ended tubes, beaded ended tubes and barbed ended tubes. The fitting comprises a generally cylindrical-shaped hollow body having retained therein a split collet having a bottom wall and a cam surface on the other peripheral edge of the bottom wall, a retainer having a bottom wall disposed within the split collet, an adapter having a bottom wall disposed within the retainer,an adapter having a bottom wall disposed within the retainer and a seal disposed between the bottom walls of of the retainer and the adapter. The seal and the bottom walls of the split collet, the retainer and the adapter each have therein an aperture for receiving therethrough the end of a tube to be tested. The fitting also includes a tube stop disposed within said adapter engageable by the terminal end of the tube to be tested, a piston assembly engageable with the adapter to longitudinally reciprocate the adapter to compress the seal in sealing engagement with a tube to be tested and to operate the split collet to grip the outside diameter of the tube, and a head threadedly retained in a tube receiving end of the hollow body. The hollow body has a cam surface thereon complimentary with and engageable with the cam surface of said split collet to operate the split collet. A handle is also provided at the other end of the hollow body having a cam surface thereon operable to longitudinally reciprocate the piston assembly when the handle is operated. In contrast to most designs, the fitting of the present invention is operable with expanded ended tubes, beaded ended tubes and barbed ended tubes.
372376
Johnson Douglas S. Q.c.
Ramer Test Tools Inc.
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