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:
Sep. 17, 1985
Filed:
Oct. 31, 1983
Applicant:
Inventors:
William R Ziegler, Longmont, CO (US);
Richard B MacAnally, Boulder, CO (US);
Assignee:
Storage Technology Partners II, Louisville, CO (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
369273 ; 206309 ; 206313 ; 369291 ; 369292 ;
Abstract
A hermetically sealed cassette cartridge is disclosed, which encapsulates an optical disk suitable for use in an optical information recording and retrieval device. The cassette cartridge comprises a structural casing having a cavity for containing said recording medium and a spindle hub adapter for rotating the disk for data access. Data transfer is accomplished through a flexibly mounted transparent window, said window serving not only as a hermetical seal but also to alleviate the need for a thick dust defocusing layer on the said encapsulated recording medium.