Abstract: A HTS switch includes a HTS conductor for providing a superconducting path for an electrical signal and an serpentine wire actuator for controllably heating a portion of the conductor sufficiently to cause that portion to have normal, and not superconducting, resistivity. Mass of the portion is reduced to decrease switching time.
Type:
Grant
Filed:
September 24, 1992
Date of Patent:
September 27, 1994
Assignee:
The United States of America as repesented by the United States Department of Energy
Inventors:
Jon S. Martens, Vincent M. Hietala, Gert K. G. Hohenwarter
Abstract: An improved adjustment and mounting stage of the type used for the detection of laser beams is disclosed. A ring sensor holder has locating pins on a first side thereof which are positioned within a linear keyway in a surrounding housing for permitting reciprocal movement of the ring along the keyway. A rotatable ring gear is positioned within the housing on the other side of the ring from the linear keyway and includes an oval keyway which drives the ring along the linear keyway upon rotation of the gear. Motor-driven single-stage and dual (x, y) stage adjustment systems are disclosed which are of compact construction and include a large laser transmission hole.
Type:
Grant
Filed:
September 26, 1986
Date of Patent:
May 10, 1988
Assignee:
The United States of America as repesented by the United States Department of Energy
Abstract: This invention relates to a novel machine element characterized by mutually rubbing surfaces which are composed of dissimilar materials having high hardness, a low coefficient of friction, and resistance to corrosion by halogen-containing atmospheres. As exemplified by the preferred embodiment for use in gaseous UF.sub.6, the rubbing surfaces are chemically deposited nickel and anodized aluminum. These surfaces permit jam-free operation despite long-term exposure to UF.sub.6. Preferably, both surfaces have a hardness of at least about 500 HV.sub.100 on the Vickers hardness scale, and preferably the anodized-aluminum surface is of a type having comparatively little tendency to sorb uranium hexafluoride.
Type:
Grant
Filed:
March 15, 1976
Date of Patent:
July 31, 1979
Assignee:
The United States of America as repesented by the United States Department of Energy
Inventors:
Douglas N. Mashburn, Harold C. Woodall, Ralph R. Wright