Browse Prior Art Database

Vacuum Flange Feed Through

IP.com Disclosure Number: IPCOM000097064D
Original Publication Date: 1962-May-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 31K

Publishing Venue

IBM

Related People

Taylor, GE: AUTHOR

Abstract

Vacuum seals shown in A and B are each formed of a TEFLON* plate 1 adapted to fit within an entry port of a vacuum chamber. When a plate 1 is positioned within an entry port, O-ring is compressed against the chamber wall to form an air tight seal.

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Vacuum Flange Feed Through

Vacuum seals shown in A and B are each formed of a TEFLON* plate 1 adapted to fit within an entry port of a vacuum chamber. When a plate 1 is positioned within an entry port, O-ring is compressed against the chamber wall to form an air tight seal.

In A, lead-through connector 3 and feed-through connectors 4 are pressed through plate 1 along holes which are countersunk to receive shoulder extensions 5. Each shoulder extension 5 has a sharpened annular seat 6 which bites into 1 so as to pack plate material against the body of the connector. Wires 7 and feed through connectors 4 are soldered at 8 to perfect the vacuum seal.

In B, extremities 9 of a water cooled, RF induction heater 10 are pressed through holes in plate 1 and pass through metal bushings 11. Each bushing 11 is engaged by threading with plate I and has a sharpened annular seat 12 which bites into 1 so as to pack plate material about the heater extremity 9. Bushings 11 and extremities 9 are soldered at 13 to perfect the vacuum seal.

The vacuum seals operate satisfactorily between the temperature of liquid nitrogen (77 degrees Kelvin) and 400 degrees Fahrenheit and are adequate for pressures in the range of 10/-6/to 10/-/7 mm of Hg. *TEFLON is a trademark of DuPont.

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