Electrical transmission or interconnection systems – Personnel safety or limit control features – Interlock
Patent
1975-01-21
1976-02-03
Zazworsky, John
Electrical transmission or interconnection systems
Personnel safety or limit control features
Interlock
307245, 307277, 357 5, H03K 338, H03K 19195, H03K 1792
Patent
active
039366774
ABSTRACT:
In an elongated weak-link supercurrent transmission line, the propagation of mobile flux vortices can be either enhanced or impeded by control means comprising a normal metal segment which interrupts either superconductor in the direction of vortex propagation and a control current source connected to the line at a point in operative relation to the normal metal segment. The control means either enhances or impedes the propagation of a vortex depending on the direction of the control current relative to that of the supercurrent associated with the vortex. The control means may also include a portion of the line in which its width is varied in order to change the velocity of the vortices. Also described is a switching device in which the transmission line is bifurcated and control means is located in each path to selectively block or transmit vortices, as well as a memory device in which the transmission line is formed in a closed loop and the normal metal segment serves to prevent the creation of anti-vortices in the loop.
REFERENCES:
patent: 3689780 (1972-09-01), Meissner et al.
patent: 3691539 (1972-09-01), Erben et al.
Fulton Theodore Alan
Galt John Kirtland
Bell Telephone Laboratories Incorporated
Urbano M. J.
Zazworsky John
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