Cartridge

Details Cartridge Cartridge

1982-06-16

1985-06-25

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record medium

In container

206309, 206444, G11B 2302

Patent

active

045257582

ABSTRACT:
A cartridge to be inserted into a drive unit includes a casing containing a recording medium disc to be driven by the drive unit. The disc has a hub fixed at its center. Center windows are provided at opposite sides of the casing and allow the hub to be inserted therethrough. Head windows are provided also at opposite sides of the casing and allow a reading head to access information recorded on opposite sides of the disc. Shutters are provided around the center windows and normally cover the head windows. These shutters are rotatable about the center windows and uncover the head windows when the cartridge is inserted into the drive unit. An actuator for rotating the shutters is provided between the shutters and the outside of the casing. The actuator has a portion exposed to the outside of the casing so that the shutters are automatically and indirectly rotated by an external force applied to the actuator when the cartridge is inserted into the drive unit. An advantage of the arrangement of these elements is that damage to and malfunctioning of the cartridge is prevented.

REFERENCES:
patent: 3416150 (1968-12-01), Lindberg
patent: 3529301 (1970-09-01), Hiruta
patent: 3593327 (1971-07-01), Shill
patent: 4120012 (1978-10-01), Bowers
patent: 4131199 (1978-12-01), Hatchett
patent: 4149207 (1979-04-01), Townsend et al.
patent: 4358801 (1982-11-01), Faber
Electrical Design News, A. Lesea et al., "Floppy-Disc Controller Design Must Begin with the Basics", pp. 129-137, *p. 133, FIG. B*.

Affiliated with

Also associated with

Rating

Cartridge does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cartridge, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cartridge will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-557646