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:
Apr. 15, 1980
Filed:
Mar. 06, 1978
Applicant:
Inventor:
Robert E Dunn, Dixon, CA (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
B08B / ; B08B / ; G11B / ;
U.S. Cl.
CPC ...
274 47 ; 15 / ; 1530 / ;
Abstract
An apparatus for cleaning record disks in which the disks are held by a turntable and rotated beneath a mechanism that imparts an electrostatic charge to dust particles on the information bearing surfaces. The charged and thus loosened particles are removed by a vacuum device. A blower and an attraction member charged oppositely to the particles further enhance the cleaning action of the vacuum.