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:
Jun. 06, 1978
Filed:
Nov. 01, 1976
Magid Yousri Dimyan, San Diego, CA (US);
Burroughs Corporation, Detroit, MI (US);
Abstract
A magnetic bubble expander-detector circuit comprising a pattern of magnetic material, forming Chevron elements positioned over a bubble-supporting material to define a bubble expander-detector circuit. Each element of the pattern is spaced from the bubble material such that a gradient is formed in the spacing between the element and the bubble material in the direction of the expansion and detection. A rotating magnetic field of sufficient strength to magnetize the pattern is applied in the plane of the material and the gradient of the spacing causes the bubbles to move from one element to an adjacent element as the bubbles are expanded and ultimately detected by suitable detection devices. This invention is particularly characterized in that, with the combination of the pattern elements and the gradient spacing thereof, gaps between adjacent elements are eliminated.