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:
Jul. 13, 1999
Filed:
Dec. 10, 1996
Thomas J Whalen, Minnetrista, MN (US);
Empak, Inc., Colorado Springs, CO (US);
Abstract
An improved disk cassette, particularly advantageous for the containment of data storage disks, having a plurality of adjacently disposed rib members, wherein each rib member has an improved cross-sectional profile such that engagement grooves defined therebetween have a dual angle configuration which maintain each disk in radial contact at four different areas along the chamfered periphery thereof to minimize particulation from forming within the disk cassette. More particularly, the improved disk cassette restricts the mobility of the disks and minimizes the amount of contact area between the disks and the disk cassette so as to collectively reduce the propensity for particulation. The improved disk cassette of the present invention is also streamlined in terms of the amount of material required for manufacture, thereby decreasing the cost of materials, the cycle time for curing, and overall cost of manufacture.