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. 24, 1987
Filed:
Sep. 27, 1984
Harry N Dieffenbach, Fremont, CA (US);
Dysan Corporation, Santa Clara, CA (US);
Abstract
A micro-floppy diskette has an outer relatively rigid jacket with a pair of aligned transducer access apertures; an inner containment cup assembly rotatably received within the jacket, the cup assembly including a pair of flexible cups sealed about the periphery and a pair of flexible annular wiping elements secured to the inner surface of each cup member; and a flexible recording disk rotatably received within the cup assembly. The cup members and wiping elements have mutually aligned cut-out portions which expose the disk recording band through the jacket access apertures when the cup assembly is rotated to an open position. When the cup is rotated to a closed position, the recording disk is shielded from ambient by solid portions of the jacket. One of the cup members has a protruding lug arranged in sliding contact with an inner surface of the jacket to bias the disk to a disk operating plane when the cup assembly is in the open position. An inner surface of the jacket has a detent groove which receives the lug when the cup assembly is in the closed position to provide a positive detent shutter function. An optional tension spring normally biases the cup assembly to the closed position.