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Title: Concentric wrench for blind access opening in a turbine

Abstract

The concentric wrench includes an outer tube having flats at one end and a gripping surface at an opposite end. An inner tube has interior flats at one end and a gripping surface at its opposite end. With the inner and outer tubes disposed about a pressure transmitting conduit, the tubes may be inserted into a blind access opening in the outer turbine casing to engage the flats of the tubes against hex nuts of an internal fitting. By relatively rotating the tubes using the externally exposed gripping surfaces, the threaded connection between the parts of the fitting bearing the respective hex nuts can be tightened or loosened.

Inventors:
 [1];  [2];  [3]
  1. (Saratoga Spring, NY)
  2. (Fairfield, OH)
  3. (Cincinnati, OH)
Issue Date:
Research Org.:
General Electric Company (Schenectady, NY)
OSTI Identifier:
874133
Patent Number(s):
6321447
Assignee:
General Electric Company (Schnectady, NY) NETL
DOE Contract Number:  
FC21-95MC31176
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
concentric; wrench; blind; access; turbine; outer; tube; flats; gripping; surface; opposite; inner; interior; tubes; disposed; pressure; transmitting; conduit; inserted; casing; engage; hex; nuts; internal; fitting; rotating; externally; exposed; surfaces; threaded; connection; bearing; tightened; loosened; /29/

Citation Formats

Laurer, Kurt Neal, Drlik, Gary Joseph, and Gibler, Edward Eugene. Concentric wrench for blind access opening in a turbine. United States: N. p., 2001. Web.
Laurer, Kurt Neal, Drlik, Gary Joseph, & Gibler, Edward Eugene. Concentric wrench for blind access opening in a turbine. United States.
Laurer, Kurt Neal, Drlik, Gary Joseph, and Gibler, Edward Eugene. Mon . "Concentric wrench for blind access opening in a turbine". United States. https://www.osti.gov/servlets/purl/874133.
@article{osti_874133,
title = {Concentric wrench for blind access opening in a turbine},
author = {Laurer, Kurt Neal and Drlik, Gary Joseph and Gibler, Edward Eugene},
abstractNote = {The concentric wrench includes an outer tube having flats at one end and a gripping surface at an opposite end. An inner tube has interior flats at one end and a gripping surface at its opposite end. With the inner and outer tubes disposed about a pressure transmitting conduit, the tubes may be inserted into a blind access opening in the outer turbine casing to engage the flats of the tubes against hex nuts of an internal fitting. By relatively rotating the tubes using the externally exposed gripping surfaces, the threaded connection between the parts of the fitting bearing the respective hex nuts can be tightened or loosened.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {1}
}

Patent:

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