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Title: Tube wall thickness measurement apparatus

Abstract

An apparatus for measuring the thickness of a tube's wall for the tube's entire length and circumference by determining the deviation of the tube wall thickness from the known thickness of a selected standard item. The apparatus comprises a base and a first support member having first and second ends. The first end is connected to the base and the second end is connected to a spherical element. A second support member is connected to the base and spaced apart from the first support member. A positioning element is connected to and movable relative to the second support member. An indicator is connected to the positioning element and is movable to a location proximate the spherical element. The indicator includes a contact ball for first contacting the selected standard item and holding it against the spherical element. The contact ball then contacts the tube when the tube is disposed about the spherical element. The indicator includes a dial having a rotatable needle for indicating the deviation of the tube wall thickness from the thickness of the selected standard item.

Inventors:
 [1]
  1. Santa Fe, NM
Issue Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
OSTI Identifier:
866098
Patent Number(s):
4633590
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01B - MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
tube; wall; thickness; measurement; apparatus; measuring; entire; length; circumference; determining; deviation; selected; standard; item; comprises; base; support; connected; spherical; element; spaced; apart; positioning; movable; relative; indicator; location; proximate; contact; ball; contacting; holding; contacts; disposed; dial; rotatable; needle; indicating; measurement apparatus; tube wall; entire length; wall thickness; apparatus comprises; spaced apart; movable relative; apparatus comprise; thickness measurement; /33/

Citation Formats

Lagasse, Paul R. Tube wall thickness measurement apparatus. United States: N. p., 1987. Web.
Lagasse, Paul R. Tube wall thickness measurement apparatus. United States.
Lagasse, Paul R. Thu . "Tube wall thickness measurement apparatus". United States. https://www.osti.gov/servlets/purl/866098.
@article{osti_866098,
title = {Tube wall thickness measurement apparatus},
author = {Lagasse, Paul R},
abstractNote = {An apparatus for measuring the thickness of a tube's wall for the tube's entire length and circumference by determining the deviation of the tube wall thickness from the known thickness of a selected standard item. The apparatus comprises a base and a first support member having first and second ends. The first end is connected to the base and the second end is connected to a spherical element. A second support member is connected to the base and spaced apart from the first support member. A positioning element is connected to and movable relative to the second support member. An indicator is connected to the positioning element and is movable to a location proximate the spherical element. The indicator includes a contact ball for first contacting the selected standard item and holding it against the spherical element. The contact ball then contacts the tube when the tube is disposed about the spherical element. The indicator includes a dial having a rotatable needle for indicating the deviation of the tube wall thickness from the thickness of the selected standard item.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {1}
}

Patent:

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