Radio frequency coaxial feedthrough

Patent · Tue Jan 17 00:00:00 EST 1989

OSTI ID:6234391

Owens, T L

A radio frequency coaxial transmission line feedthrough device is described for transmitting radio frequency energy between first and second coaxial transmission line regions of different pressure, comprising: a coaxial transmission line segment having an inner cylindrical conductor formed of an electrically conductive material and an outer cylindrical conductor formed of an electrically conductive material and coaxially disposed about and spaced from the inner conductor, the coaxial transmission line segment being adapted for connection between the first and second coaxial transmission line regions; at least one pressure barrier means for sealably isolating the first and second coaxial transmission line regions and providing transmission of the radio frequency energy therethrough, including an annular right circular cylinder barrier disk formed of a rigid, impermeable, electrically insulating material coaxially disposed between and contiguous with the inner and outer conductors of the segment along the length thereof; a first radial force transmitting collar disposed about and contiguous with the outer surface of the outer conductor in axial alignment with the barrier disk; a sleeve formed of a material having a coefficient of expansion equal to or less than the barrier disk disposed about the fist radial force transmitting collar to continually generate a radially inward force sufficient to form a gas-tight seal between the inner surface of the outer conductor and the other diameter surface of the barrier disk.

• Assignee: Dept. of Energy, Washington, DC
• Patent Number(s): US 4799036
• OSTI ID: 6234391
• Resource Relation: Patent File Date: Filed date 7 Dec 1987
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
24 POWER TRANSMISSION AND DISTRIBUTION
COAXIAL CABLES
DESIGN
RF SYSTEMS
ELECTRIC CONDUCTORS
POWER TRANSMISSION
POWER TRANSMISSION LINES
PRESSURE CONTROL
RADIOWAVE RADIATION
CABLES
CONDUCTOR DEVICES
CONTROL
ELECTRIC CABLES
ELECTRICAL EQUIPMENT
ELECTROMAGNETIC RADIATION
EQUIPMENT
RADIATIONS
420800* - Engineering- Electronic Circuits & Devices- (-1989)
200300 - Electric Power Engineering- Power Transmission & Distribution- (-1989)