Abstract: A multiple conductor dielectric cable assembly and method of manufacture is disclosed. The cable assembly comprises an elongated housing in which grooved damper elements are mounted in a stacked relationship at intervals along the housing. Electrical conductors pass over and under the grooves of the damper elements along a path between connections in the walls of the housing. The grooves of adjacent damper elements are oppositely oriented and offset to provide deviations of the conductors from a straight line, thereby holding the conductors under tension and spaced from other conductors and the walls of the housing. Any desired dielectric medium, such as air or a vacuum, fills the interior of the housing to surround each conductor. In the manufacture of the cable assembly, a first set of damper elements, with the grooves facing upwardly, is dropped into supports in the housing. The conductor elements are laid into the upwardly-facing grooves of the first set of damper elements.
Abstract: A cylinder is flanged onto the wall of a vacuum chamber in which a workpiece is to be coated and is to brought into contact with a current or power conductor for accomplishing same, and the current conductor in the form of a piston rod extends through this cylinder. The piston rod includes at one end a disk of graphite intended to contact the workpiece. An annular piston which is rigidly mounted on the piston rod is subjected at its outer side to the atmospheric pressure and closes a space off located within the cylinder and enclosed by a bellows, which space communicates with the vacuum chamber. A spiral pressure spring within the cylinder which rests against its bottom and against the inner side of the piston counteracts the atmospheric pressure at the outer side of the piston. In case of a subatmospheric pressure in the space, the piston is moved inwards into the cylinder against the action of the spring and the contact between the current conductor and the workpiece is established automatically.
Abstract: With an accelerator for accelerating an electron beam by a voltage of about 400 KV having a stability of 10.sup.-6, it is difficult to use a flexible, insulated cable to feed the output from a power supply to an electron beam and an accelerating tube. Accordingly, the present invention employs a rodlike connector instead of such an insulated cable. A guide means is provided to permit the movement of a power supply column in the direction of the axis of the connector. This facilitates cleaning or otherwise maintaining the power supply column, the electron gun, and the accelerating tube.
Abstract: Described is a multi-element, high voltage radio frequency bushing for trmitting RF energy to an antenna located in a vacuum container. The bushing includes a center conductor of complex geometrical shape, an outer coaxial shield conductor, and a thin-walled hollow truncated cone insulator disposed between central and outer conductors. The shape of the center conductor, which includes a reverse curvature portion formed of a radially inwardly directed shoulder and a convex portion, controls the uniformity of the axial surface gradient on the insulator cone. The outer shield has a first substantially cylindrical portion and a second radially inwardly extending truncated cone portion.
Type:
Grant
Filed:
September 3, 1982
Date of Patent:
November 20, 1984
Assignee:
The United States of America as represented by the Department of Energy