Method and apparatus for preparing a duct for traversal

Details Method and apparatus for preparing a duct for traversal Method and apparatus for preparing a duct for traversal

2008-04-02

2010-10-26

Bennett, G. Bradley (Department: 2841)

Geometrical instruments

Gauge

Template

C033S529000

Reexamination Certificate

active

07818892

ABSTRACT:
A duct traversal preparation apparatus that temporarily adheres to a surface to enable hands-free traversal is provided. The apparatus includes scales to accurately locate the positions of traverse holes and a template with a locking device to guide the drilling of the traverse holes. The apparatus also orients a measuring probe to coordinates for accurate and repeatable airflow measurement.

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