The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 03, 1976
Filed:
Jan. 21, 1975
Theodore Alan Fulton, Warren Township, Somerset County, NJ (US);
John Kirtland Galt, Albuquerque, NM (US);
Bell Telephone Laboratories, Incorporated, Murray Hill, NJ (US);
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.