Browse Prior Art Database

Vacuum Viewport Probe

IP.com Disclosure Number: IPCOM000083641D
Original Publication Date: 1975-Jun-01
Included in the Prior Art Database: 2005-Mar-01
Document File: 2 page(s) / 54K

Publishing Venue

IBM

Related People

Donelon, JJ: AUTHOR

Abstract

This probe device satisfies the need for checking the alignment of three concentric holes while a system is under vacuum. The view is from a midpoint in a stainless steel vacuum chamber, looking directly up at the alignment.

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Vacuum Viewport Probe

This probe device satisfies the need for checking the alignment of three concentric holes while a system is under vacuum. The view is from a midpoint in a stainless steel vacuum chamber, looking directly up at the alignment.

This probe consists of a KOVAR* tube with one end welded to the sealing edge side of an ultrahigh-vacuum flange, and the other end attached to a glass graded seal. The seal is attached to a PYREX** tube that is closed at the end.

A silvered reflector is inserted in the probe cavity with an attached manipulating rod, so that any part of the interior of a stainless steel vacuum chamber can be viewed by sighting down the manipulating rod, whether the probe cavity is under vacuum or at atmospheric pressure. * Trademark of Westinghouse Electric Corporation ** Trademark of Corning Glass Works.

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