Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Patent
1979-06-04
1981-06-09
Eddleman, Alfred H.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Disk record
360133, G11B 362, G11B 5016, G11B 2302
Patent
active
042727952
ABSTRACT:
An information storage system and recording cartridge includes features for precisely aligning a flexible magnetic recording disc with respect to a magnetic head transducer and a motor rotational means. The system includes a cartridge holder which is comprised of upper and lower members coupled together to form a protective housing for the cartridge. The holder has an open mouth through which the cartridge is inserted. The bottom of the cartridge has two elongated slots extending perpendicularly inward from opposite side walls and a recess extending perpendicularly inward from an end wall of the cartridge. The lower interior surface of the cartridge holder is equipped with two detents which extend perpendicularly inward from opposite sides thereof and mate with the elongated slots in the cartridge and an extension member extending perpendicularly inward from an end opposite the open end for mating with the recess on the cartridge to precisely locate and align the cartridge and disc. In a further feature the cartridge holder includes three spring members mounted in openings in the upper member to provide downward biasing pressure on top of the cartridge and an additional spring member mounted inside the holder at the end thereof for biasing the cartridge toward the open mouth, thereby facilitating removal of the cartridge. The cartridge and holder are mounted in a deck which functions as a base member. The deck includes the head and motor rotational means and is equipped with a pair of vertical alignment posts which are in abutting relationship with respective 90.degree. angle surfaces of the cartridge when the cartridge is properly positioned with respect to the head and motor rotational means.
REFERENCES:
patent: 3529301 (1970-09-01), Hiruta
patent: 3609722 (1971-09-01), Zenzefilis
patent: 3845502 (1974-10-01), Paus
patent: 3891796 (1975-06-01), Takahara et al.
patent: 3947893 (1976-03-01), Hall, Sr.
patent: 4149207 (1979-04-01), Porter et al.
patent: 4175274 (1979-11-01), Mann
Davis, Jr. Max G.
Mueller Charles M.
Eddleman Alfred H.
Heiting Leo N.
Marshall, Jr. Robert D.
Sharp Melvin
Texas Instruments Incorporated
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