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FR2452153A1 Expired / Lapsed FR ⏱️ 0.0 years remaining

Magnetic disc storage device - has cooling increased by radial air channels in spacing rings between magnetic discs in stack

Assignee: NTT Inc
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Filing: 1980-03-19
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Granted: —
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Expires: 2000-03-19
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Abstract

Abstract Translated from French L'INVENTION CONCERNE UN DISPOSITIF FORMANT MEMOIRE A DISQUES MAGNETIQUES COMPRENANT UN ENSEMBLE D'UN EMPILEMENT DE DISQUES COMPORTANT UN EMPILEMENT ALTERNE DE DISQUES MAGNETIQUES ET DE PIECES D'ESPACEMENT, ET IL EST ENTRAINE EN ROTATION PAR UNE BROCHE, AVEC UNE GAINE D'ALIMENTATION EN AIR PROPRE VERS UN BOITIER ENFERMANT L'ENSEMBLE. SELON L'INVENTION, LES PIECES D'ESPACEMENT 33A-33F SONT POURVUES DE PASSAGES RADIAUX D'AIR 33A-33F1, ET L'ENSEMBLE DE DISQUES 21 EST POURVU D'UNE OUVERTURE CENTRALE EST BLOQUE A UNE PLAQUE DE BASE 38 PAR DES BOULONS 35B, AGENCES POUR NE PAS INTERFERER AVEC L'AIR S'ECOULANT DE L'OUVERTURE CENTRALE VERS LES ESPACES ENTRE LES DISQUES MAGNETIQUES ADJACENTS PAR LES PASSAGES D'AIR DES PIECES D'ESPACEMENT. L'INVENTION S'APPLIQUE NOTAMMENT AUX SYSTEMES DE CALCULATEURS. THE INVENTION RELATES TO A MAGNETIC DISC MEMORY-FORMING DEVICE INCLUDING AN ASSEMBLY OF A DISC STACK INCLUDING AN ALTERNATE STACK OF MAGNETIC DISCS AND SPACERS, AND IT IS ROTATED BY A SPINDLE, WITH A FEED SHEATH IN CLEAN AIR TO A BOX CLOSING THE ASSEMBLY. ACCORDING TO THE INVENTION, THE SPACERS 33A-33F ARE PROVIDED WITH RADIAL AIR PASSAGES 33A-33F1, AND THE DISC ASSEMBLY 21 IS PROVIDED WITH A CENTRAL OPENING IS LOCKED TO A BASE PLATE 38 BY BOLTS 35B, ARRANGED NOT TO INTERFER WITH THE AIR FLOWING FROM THE CENTRAL OPENING TO THE SPACES BETWEEN THE ADJACENT MAGNETIC DISCS THROUGH THE AIR PASSAGES OF THE SPACING ROOMS. THE INVENTION APPLIES IN PARTICULAR TO COMPUTER SYSTEMS.

Inventors

No inventors recorded.

Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-10-30 19:14
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/02; G11B17/038; G11B23/00; G11B23/02; G11B23/021; G11B23/50; G11B23/505

Claims Analysis

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References Cited (Backward Citations)

CH464293A Cited
FR2091576A5 Cited
FR2382739A1 Cited

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