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. 02, 1982
Filed:
Dec. 26, 1979
Applicant:
Inventor:
Jorgen Frandsen, Winnipeg, CA;
Assignee:
Burroughs Corporation, Detroit, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
360106 ; 310 13 ; 360104 ; 360 78 ; 360 97 ;
Abstract
In combination with disk drive apparatus, an array of flat-coil actuator's is disclosed, with each actuator adapted to translate and position transducer means between a respective pair of stacked disk recording surfaces; each actuator comprising a number of flat-coil turns on at least one side of a planar substrate, this substrate being arranged to run between opposing magnet pole pieces along a path defined by a pair of opposed runways, with these coils being disposed in 'overlapping' relation relative to one another and to respective pole pieces --thus when selected coil turns are energized the substrate may be controllably translated and positioned.