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:
Sep. 06, 1983
Filed:
Aug. 25, 1980
Applicant:
Inventor:
Michael B Simmonds, Del Mar, CA (US);
Assignee:
S.H.E. Corporation, San Diego, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
324248 ; 307306 ;
Abstract
Thin film Josephson junctions are combined with a block of superconductive material to form a low inductance dc SQUID having very high sensitivity. The block has a toroidal cavity with a circular opening or gap between the cavity and one face of the block. A pair of Josephson junctions, using planar thin film technology, are formed on a substrate and clamped against the block so that the two junctions in series bridge the gap, the junctions and the block combining to form a superconductive closed loop with two junctions in the loop. Coils in the toroidal cavity are inductively coupled to this closed loop.