Browse Prior Art Database

Cell, Glass Vacuum Window Holder

IP.com Disclosure Number: IPCOM000094346D
Original Publication Date: 1966-Sep-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 34K

Publishing Venue

IBM

Related People

Duran, J: AUTHOR

Abstract

In the manufacture of a glass cell 1 by fusing a glass lens 2 at the end 3 of a cylindrical glass tubing 4, it is difficult to hold lens 2 in contact with the end of tubing 4 during fusing. However, this problem is solved by providing tubing 4 with vacuum chamber 5. The latter is formed by a larger glass cylinder having exhaust port 6 and with one end temporarily scaled to tubing 4. Now, when lens 2 is positioned at the end of tubing 4, it closes vacuum chamber 5 and, by exhausting chamber 5 through port 6, is held in position during fusing by the external atmospheric pressure. After lens 2 is fused to the tubing, the larger cylinder is removed.

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Cell, Glass Vacuum Window Holder

In the manufacture of a glass cell 1 by fusing a glass lens 2 at the end 3 of a cylindrical glass tubing 4, it is difficult to hold lens 2 in contact with the end of tubing 4 during fusing. However, this problem is solved by providing tubing 4 with vacuum chamber 5. The latter is formed by a larger glass cylinder having exhaust port 6 and with one end temporarily scaled to tubing 4. Now, when lens 2 is positioned at the end of tubing 4, it closes vacuum chamber 5 and, by exhausting chamber 5 through port 6, is held in position during fusing by the external atmospheric pressure. After lens 2 is fused to the tubing, the larger cylinder is removed.

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