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.

Date of Patent:
Dec. 26, 1989

Filed:

Mar. 11, 1988
Applicant:
Inventors:

Hiroshi Katoh, Chigasaki, JP;

Hiromi Taguchi, Yokohama, JP;

Shoji Kikunaga, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360107 ;
Abstract

A guide drum assembly comprises a rotary drum mounted with at least one rotary magnetic head, a rotary shaft rigidly fixed to the rotary drum so that the rotary drum rotates when the rotary shaft rotates, a motor having a stator and a rotor which generates a torque for driving the rotary shaft, and a resilient member having both viscosity and resiliency for resiliently coupling the rotor to the rotary shaft. The resilient member absorbs vibrations in a circumferential direction of the rotor.


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