Patents by Inventor Robert F. Hiedecker

Robert F. Hiedecker has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 3947886
    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.
    Type: Grant
    Filed: April 25, 1974
    Date of Patent: March 30, 1976
    Assignee: Dynastor, Inc.
    Inventors: Robert F. Hiedecker, A. Kenneth Johnson, Galen B. Royer