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. 18, 1989
Filed:
Feb. 27, 1981
Applicant:
Inventors:
Dean DeMoss, Camarillo, CA (US);
Harvey J Richardson, Sepulveda, CA (US);
Tom Narasaki, Camarillo, CA (US);
Assignee:
Unisys Corp., Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360 9802 ; 360 9801 ;
Abstract
A flexible disk pack having a pair of floppy end plates. The end plates are adapted to assume a Delta or tapered shape when they are rotated with the record pack. Each of the end plates is formed of at least two stacks of contiguous flexible disks separated by wedge spacers. The thickness and mass of the outer stack of each end plate is determined by the stiffness desired while the thickness and mass of the inner stack is selected to cause it to bend smoothly toward the outer stack allowing for pneumatic stability during partitioning.