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:
Mar. 02, 1999
Filed:
Oct. 30, 1996
Katsuaki Ishida, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A breather structure for ventilation between the inside and outside of the housing of the disk drive is realized by a simple, inexpensive construction. The cover structure is for a disk drive provided on a base with a spindle motor carrying recording disks and an actuator for driving a carriage carrying heads for writing information on the disks, with the inside sealed airtight by attaching a cover to the gas through a gasket, and with an antivibration plate for preventing vibration and noise from generating when driving the disks at the surface of the cover contacting the outside air either directly or through a viscoelastic member. A ventilation groove for ventilating between the inside and outside of the disk drive is realized by forming a breather passage designed considering the passage conductance between the cover and the antivibration plate, providing a breather vent communicating the breather passage with the outside in the antivibration plate at one end of the breather passage, and providing a breather vent communicating the breather passage with the inside of the disk drive at the cover at the other end.