Minnesota Mining and Manufacturing Company

Gregg A Ambur

David L Hubbling

A disk cartridge includes a rotatable disk, a cartridge case for housing the disk, and a U-shaped shutter slidably disposed on the front wall of the cartridge case. The cartridge case includes a head access opening formed adjacent the front wall. The access opening is opened and closed by the shutter which is biased closed by a spring. A projection mounted on the shutter contacts and locates the spring between one of the cartridge case side walls and the projection.

Shutter spring stop for disk cartridges

A disk cartridge includes a rotatable disk, a cartridge case for housing the disk, and a U-shaped shutter slidably disposed on the front wall of the cartridge case. The cartridge case includes upper and lower walls, and a head access opening formed in both walls adjacent the front wall to access the disk. The access opening is opened and closed by the shutter which is biased closed by a spring. A projection mounted on the shutter contacts and locates the spring between one of the cartridge case side walls and the projection. A tab is mounted on the cartridge case and contacts the projection to stop movement of the shutter when the shutter is biased in the closed position.

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Wahpeton, ND, United States of America

Gregg A Ambur