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. 30, 1976
Filed:
Apr. 25, 1974
Robert F Hiedecker, Longmont, CO (US);
A Kenneth Johnson, Boulder, CO (US);
Galen B Royer, Boulder, CO (US);
Dynastor, Inc., Denver, CO (US);
Abstract
In electromagnetically reading or writing information on a flexible recording medium, commonly referred to as a 'floppy' disc, a read/write head is permanently secured for translational movement with respect to each of a succession of discs which are brought into position beneath the head, the disc being rotated until its recording surface is raised into close proximity to the head for reading and writing information thereon. An airflow pattern is established between the disc and a flat reference plate to form an air bearing interface therebetween which will maintain the disc in a flat plane of rotation directly beneath the head. A second air bearing is formed between the head and the disc to maintain a slight, precise separation therebetween so as to prevent direct contact in close proximity between the head and disc to facilitate electromagnetic recording.