F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
285/62
F16L 21/00 (2006.01) E02B 11/00 (2006.01) F16L 1/032 (2006.01) F16L 25/00 (2006.01)
Patent
CA 1098146
ABSTRACT OF THE DISCLOSURE A pipe coupling for joining abutting sections of pipe particularly adapted for connecting corrugated plastic drain pipe to provide a strong yet flexible coupling having a relatively smooth external surface thereby avoiding entanglement of the coupling in the guide of a trencher for the subterranean laying of the pipe. The pipe coupling con- sists of a substantially flexible rectangular shaped sleeve having at least two rows of teeth disposed along the length of the sleeve and means for fastening the ends of the sleeve around two sections of pipe to allow each row of teeth to en- gage at least one corrugated groove disposed at or near the end of each section of pipe to provide a coupling having a wide range of applicability for connecting a variety of cor- rugated pipe configurations.
317646
Keeney Gary E.
Loomis Ervin C.
Zurcher Allen K.
Borden Ladner Gervais Llp
Plasta-Plug Inc.
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