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:
Nov. 20, 1979
Filed:
Jun. 05, 1978
Applicant:
Inventor:
Thomas W Collins, Saratoga, CA (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365 15 ; 365 39 ;
Abstract
A magnetic bubble switch operates in a drive-to-transfer mode when a rotating magnetic field is applied. The switch has a magnetic element in the shape that defines the letter 'Y' having two arms and a stem. The switch has at least one serration on the arm of the Y in the vicinity of the stem. The switch has a conductor which is positioned across the end of the stem of the Y. A magnetic element is positioned so as to form a gap with the stem of the Y.