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Title: Automated internal pipe cutting device

Abstract

The invention is a remotely controlled internal pipe cutting device primarily used for cutting pipes where the outside of the pipe is inaccessible at the line where the cut is to be made. The device includes an axial ram within a rotational cylinder which is enclosed in a housing. The housing is adapted for attachment to an open end of the pipe and for supporting the ram and cylinder in cantilever fashion within the pipe. A radially movable cutter, preferably a plasma arc torch, is attached to the distal end of the ram. A drive mechanism, containing motors and mechanical hardware for operating the ram and cylinder, is attached to the proximal end of the housing. The ram and cylinder provide for moving the cutter axially and circumferentially, and a cable assembly attached to a remote motor provide for the movement of the cutter radially, within the pipe. The control system can be adjusted and operated remotely to control the position and movement of the cutter to obtain the desired cut. The control system can also provide automatic standoff control for a plasma arc torch.

Inventors:
 [1];  [2];  [3];  [4];  [5];  [6];  [7]
  1. (Clifton Park, NY)
  2. (Ballston Spa, NY)
  3. (Amsterdam, NY)
  4. (Oakdale, CT)
  5. (Mechanicville, NY)
  6. (Cranston, RI)
  7. (Warwick, RI)
Issue Date:
OSTI Identifier:
874997
Patent Number(s):
6508975
Application Number:
09/657,002
Assignee:
The United States of America as represented by the United States Department (Washington, DC) OSTI
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
automated; internal; pipe; cutting; device; remotely; controlled; primarily; pipes; outside; inaccessible; line; cut; axial; rotational; cylinder; enclosed; housing; adapted; attachment; supporting; cantilever; fashion; radially; movable; cutter; plasma; torch; attached; distal; drive; mechanism; containing; motors; mechanical; hardware; operating; proximal; provide; moving; axially; circumferentially; cable; assembly; remote; motor; movement; control; adjusted; operated; position; obtain; automatic; standoff; drive mechanism; remotely controlled; /266/148/

Citation Formats

Godlewski, William J., Haffke, Gary S., Purvis, Dale, Bashar, Ronald W., Jones, Stewart D., Moretti, Jr., Henry, and Pimentel, James. Automated internal pipe cutting device. United States: N. p., 2003. Web.
Godlewski, William J., Haffke, Gary S., Purvis, Dale, Bashar, Ronald W., Jones, Stewart D., Moretti, Jr., Henry, & Pimentel, James. Automated internal pipe cutting device. United States.
Godlewski, William J., Haffke, Gary S., Purvis, Dale, Bashar, Ronald W., Jones, Stewart D., Moretti, Jr., Henry, and Pimentel, James. Tue . "Automated internal pipe cutting device". United States. https://www.osti.gov/servlets/purl/874997.
@article{osti_874997,
title = {Automated internal pipe cutting device},
author = {Godlewski, William J. and Haffke, Gary S. and Purvis, Dale and Bashar, Ronald W. and Jones, Stewart D. and Moretti, Jr., Henry and Pimentel, James},
abstractNote = {The invention is a remotely controlled internal pipe cutting device primarily used for cutting pipes where the outside of the pipe is inaccessible at the line where the cut is to be made. The device includes an axial ram within a rotational cylinder which is enclosed in a housing. The housing is adapted for attachment to an open end of the pipe and for supporting the ram and cylinder in cantilever fashion within the pipe. A radially movable cutter, preferably a plasma arc torch, is attached to the distal end of the ram. A drive mechanism, containing motors and mechanical hardware for operating the ram and cylinder, is attached to the proximal end of the housing. The ram and cylinder provide for moving the cutter axially and circumferentially, and a cable assembly attached to a remote motor provide for the movement of the cutter radially, within the pipe. The control system can be adjusted and operated remotely to control the position and movement of the cutter to obtain the desired cut. The control system can also provide automatic standoff control for a plasma arc torch.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {1}
}

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