Patent ID: 7322922

Claim:
A method of end-to-end joining of two cylindrical sleeves, each cylindrical sleeve having an outer cylindrical surface and an inner cylindrical surface and including an end joint surface on the end of such cylindrical sleeve, said method comprising: applying a strand of a first glue to at least a part of the width of the end joint surface of one of the cylindrical sleeves, the first glue having properties that cause fixing of the end joint surfaces of the sleeves within a first time period; and applying a strand of a second glue to at least a part of the width of the end joint surface of one of the cylindrical sleeves, the second glue having properties that causing wetting of the sleeve material in the joint surface and its immediate vicinity; positioning the width of the end joint surface of a first one of the cylindrical sleeves against the width of the end joint surface of a second one of the cylindrical sleeves so that the first glue strand by itself causes fixing of the end joint surfaces within the first time period; and allowing the second glue strand to set by itself within a second time period, longer than the first time period.