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. 01, 1983
Filed:
Jan. 14, 1981
Lawrence G Martinelli, San Jose, CA (US);
Verbatim Corporation, Sunnyvale, CA (US);
Abstract
An improved wet cleaning disk assembly for use in cleaning reading and writing transducers of a floppy disk drive. The cleaning disk assembly includes an envelope having apertures formed therethrough for receiving reading and writing transducers and a reinforced opening along one edge thereof for insertion of a cleaning disk thereinto. In use, a cleaning disk, presoaked with a liquid cleaning solution, is removed from a sealed package and inserted into the envelope to form the cleaning assembly which is then inserted into a floppy disk drive. A spindle within the drive passes through a central aperture therefor in the envelope and through a central aperture in the disk to thereby engage the disk and rotate it within the envelope. The envelope and cleaning disk also include sensing apertures adapted to permit optical sensing of disk rotation by the drive. The cleaning disk facilitates this sensing by means of an opaque, C-shaped region printed thereon within an annular region about the central aperture of the disk which includes the sensing aperture. The disk further includes an annular shaped reinforcement formed on a side surface of the disk in the region thereof which is engaged by the spindle of the floppy disk drive. This cleaning disk assembly may be used to clean a floppy disk drive having a single reading and writing transducer by securing a removable cover over one of the apertures formed therefor in the envelope prior to its insertion into such a drive.