Electrically heated welding sleeve and method for...

Details Electrically heated welding sleeve and method for... Electrically heated welding sleeve and method for...

F - Mech Eng,Light,Heat,Weapons

16

L

285/44, 327/76,

F16L 13/00 (2006.01) B29C 65/00 (2006.01) B29C 65/34 (2006.01) F16L 47/00 (2006.01) F16L 47/03 (2006.01)

Patent

CA 1039770

ABSTRACT OF THE DISCLOSURE Electrically heated thermoplastic welding sleeve for joining thermoplastic tubes by heating the sleeve by means of a heater coil within said sleeve of which the wire terminals are fed through the wall of the sleeve for connection to a power supply. For centering tubes of unequal diameters, due to manufacturing tolerances, the in- side wall of the sleeve is provided with resilient protrusions. The method for manufacturing said protrusions is characterized by cutting the inside wall longitudinally so that the displaced material from the grooves forms fins.

268169

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