Pipe replacement system

Patent metadata

Field	Value
Publication number	US-8998538-B2
Application number	US-201213722004-A
Country	US
Kind code	B2
Filing date	Dec 20, 2012
Priority date	Dec 20, 2011
Publication date	Apr 7, 2015
Grant date	Apr 7, 2015

Abstract

Pipe replacement devices, and systems are shown. Devices and systems may include jointed cutters and floating cutters to navigate difficult pipe replacement conditions. Devices and systems may also include replacement pipe with pre-installed supply hoses, such as lubricant supply and/or pneumatic supply hoses. Methods of pipe replacement are also described, including splitting old pipe and pulling in new pipe behind the equipment as splitting progresses.

First claim

I claim:

1. A pipe replacement device, comprising:
an expander;
an opening in a front of the expander to accept a towing cable;
a lateral insertion pocket coupled to the opening, adapted to guide a cable threaded into the expander through the opening and outward through the lateral insertion pocket;
a removable anchor block adapted to fit within the lateral insertion pocket; and
one or more tapered wedge segments fitting into corresponding tapers in the removable anchor bl…

Assignees

• Tt Technologies Inc

Inventors

• Tjader Michael

Classifications

• F16L1/028

  Mechanical Engineering · mapped topic

• F16L55/18 Primary

  Mechanical Engineering · mapped topic

• F16L1/032

  Mechanical Engineering · mapped topic

• F16L55/1658 Primary

  Mechanical Engineering · mapped topic

• B65H75/40

  Operations & Transport · mapped topic