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:
Feb. 12, 1980
Filed:
May. 15, 1978
Applicant:
Inventor:
Thomas J Loran, Boulder, CO (US);
Assignee:
Storage Technology Corporation, Boulder, CO (US);
Primary Examiner:
Int. Cl.
CPC ...
H01F / ; B32B / ;
U.S. Cl.
CPC ...
428 65 ; 252 546 ; 364134 ; 364135 ; 427131 ; 427128 ; 427426 ; 428 64 ; 428216 ; 428422 ; 428900 ; 428484 ;
Abstract
A magnetic record, such as a magnetic disc, has a smooth continuous layer of solid lubricant mixed with liquid lubricant. The lubricating layer is applied by spraying the magnetic record with a carrier in which the solid and liquid lubricants are dissolved. In the preferred embodiment, tetrafluoroethylene telomer, a solid lubricant, is applied to a magnetic disc and then buffed. Perfluoroalkylpolyether, a liquid lubricant, is then applied and buffed. The lubricants are dissolved in a carrier of trichlorotrifluoroethane.