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:
Sep. 15, 1998
Filed:
May. 30, 1997
Noriaki Ishimatsu, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A housing assembly for magnetic head supporting arms of a magnetic disk device includes a housing which has a cylindrically shaped through-hole having two bearings each provided at each end of the through-hole and is formed integrally with supporting arms for supporting magnetic heads. The housing has a cylindrically shaped collar which is constituted by a member having the same linear expansion coefficient as that of the bearings and is fitted between the bearings in an exact fitting dimensional relationship with the bearings. The housing has a slit which extends through an entire axial length and is disposed in a wall defining the through-hole of the housing. The thermal strain in the head supporting arms integral with the housing can be suppressed so as not to be influenced by a temperature rise of the device or a temperature change of environments.