| CPC F17C 13/02 (2013.01) [F17C 1/002 (2013.01); F17C 13/025 (2013.01); F17C 13/08 (2013.01); F17C 13/083 (2013.01); G01D 11/30 (2013.01); F17C 2201/0109 (2013.01); F17C 2201/0119 (2013.01); F17C 2201/035 (2013.01); F17C 2201/054 (2013.01); F17C 2205/0107 (2013.01); F17C 2205/013 (2013.01); F17C 2205/0157 (2013.01); F17C 2221/011 (2013.01); F17C 2221/012 (2013.01); F17C 2221/014 (2013.01); F17C 2221/033 (2013.01); F17C 2221/035 (2013.01); F17C 2223/0123 (2013.01); F17C 2223/035 (2013.01); F17C 2250/043 (2013.01); F17C 2250/0465 (2013.01); F17C 2250/0491 (2013.01); F17C 2260/015 (2013.01); F17C 2270/0105 (2013.01); F17C 2270/011 (2013.01); F17C 2270/0171 (2013.01); F17C 2270/0173 (2013.01)] | 20 Claims |

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1. A method of gathering information on a vessel arrangement of first, second, third and fourth vessels arranged in a two-by-two configuration having a common central space between all of the first, second, third and fourth vessels, the method comprising:
inserting an interior assembly into the central space;
positioning a first sensor of the interior assembly proximate the first vessel;
positioning a second sensor of the interior assembly proximate the second vessel;
moving the first sensor in a first direction into contact with the first vessel; and
moving the second sensor in a second direction into contact with the second vessel.
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