Pipe joint testing and grouting unit

Details Pipe joint testing and grouting unit Pipe joint testing and grouting unit

1990-04-05

1991-11-19

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Product or preform repair or restoring means

Means feeding fluent stock under pressure

73 46, 138 93, 138 98, 249 65, 264 36, 264269, 285 15, 425457, F16L 55162

Patent

active

050662082

ABSTRACT:
A pipe joint pressurizing unit for testing pipe joints and grouting pipe joints with grout, the pressurizing unit having a rigid cylindrical core member with an expandable rubber sleeve mounted on the outside of the core member with a telescoping component for delivering a fluid such as air or grout to the outside of the expandable sleeve, the telescoping conduit including an outlet pipe slidably installed in a guide tube, the outlet pipe having a distal end connected to the expandable sleeve and slidable in the guide tube on expansion of the sleeve, with an o-ring seal sealing between the guide tube and the outlet pipe while permitting the outlet pipe to slide in the guide tube on expansion of the sleeve.

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