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:
Dec. 07, 1982
Filed:
Mar. 02, 1981
Michael M Siverling, Rochester, MN (US);
Stephen E Wheeler, Rochester, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A disk file is equipped with a recirculating filter duct utilizing the pressure differentials within an enclosure imparted by the rotating disk to induce an air flow in the duct having an inlet near the disk periphery and an outlet effectively radially inward thereof. The flow of air through this duct is enhanced by a deflector adjacent the duct outlet at the side thereof initially approached by a given point on the rotating disk and a projection approaching the opposite surface of the disk or disk pack and generally axially aligned with the deflector to equalize the forces exerted and avoid instability of disk operation. The duct is configured to eliminate eddy currents and the air volume within the enclosure is limited to increase the rate at which air changes occur.