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. 10, 1981
Filed:
Sep. 04, 1979
Charles A Barnes, St. Paul Park, MN (US);
Robert A von Behren, Lilydale, MN (US);
Minnesota Mining and Manufacturing Co., St. Paul, MN (US);
Abstract
A composite magnetic head adapted to record and read records to and from a record carrier particularly suited to a multitrack record carrier, and more particularly suited to a multitrack magnetic tape. The composite magnetic head may be moved transversely with respect to the direction of movement of the record carrier so that head alignment with any one of multitracks of the record carrier may be achieved. The record carrier contacts the head assembly defining a scrub surface. A yoke is provided supporting a ferrite core containing an effective gap which permits the head to be physically mounted with respect to the record carrier. The yoke is constructed and mounted so that one surface of the yoke is coplanar with the scrub surface of the ferrite core and which extends in both directions transversely to the motion of the record carrier at least a distance equal to the width of the record carrier in each direction so that the record carrier may be evenly supported over the range of movement of the head transverse to the direction of movement of the record carrier. A central open area of the yoke is provided to allow for physical access to the coil windings of the ferrite core.