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:
Feb. 01, 2005
Filed:
Sep. 06, 2002
Augustinus Laurentius Braun, Eindhoven, NL;
Leonardus Petrus Maria Tielemans, Eindhoven, NL;
Augustinus Laurentius Braun, Eindhoven, NL;
Leonardus Petrus Maria Tielemans, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A filter arrangement for a recording/reproducing wherein To decrease the energy consumption of air filtering while ensuring good filtering results, the air filter arranged stationary within the housing to extend over the disc information surface, the airflow flowing axially through the filter and being induced by the naturally occurring pumping action of the rotating information disc, while the air flow resistance of the air inlet, the air filter and the air exhaust exhibit mutually adapted air flow resistance values substantially preventing any air flow from outside the casing, through the casing and out of the exhaust different from the air flow from the air inlet, through the air filter, the casing and out of the exhaust.