BE848054A - Procede et dispositif d'acces a une pile de disques flexibles, - Google Patents
Procede et dispositif d'acces a une pile de disques flexibles,Info
- Publication number
- BE848054A BE848054A BE172132A BE172132A BE848054A BE 848054 A BE848054 A BE 848054A BE 172132 A BE172132 A BE 172132A BE 172132 A BE172132 A BE 172132A BE 848054 A BE848054 A BE 848054A
- Authority
- BE
- Belgium
- Prior art keywords
- stack
- access
- flexible discs
- discs
- flexible
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/02—Details
- G11B17/021—Selecting or spacing of record carriers for introducing the heads
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/638,792 US4051541A (en) | 1975-12-08 | 1975-12-08 | Access to floppy disk stack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE848054A true BE848054A (fr) | 1977-03-01 |
Family
ID=24561453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE172132A BE848054A (fr) | 1975-12-08 | 1976-11-05 | Procede et dispositif d'acces a une pile de disques flexibles, |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US4051541A (fr) |
| JP (1) | JPS5270817A (fr) |
| AU (1) | AU505465B2 (fr) |
| BE (1) | BE848054A (fr) |
| BR (1) | BR7608248A (fr) |
| CA (1) | CA1074441A (fr) |
| CH (1) | CH607226A5 (fr) |
| DE (1) | DE2655010B2 (fr) |
| ES (1) | ES454014A1 (fr) |
| FR (1) | FR2335016A1 (fr) |
| GB (1) | GB1503067A (fr) |
| IT (1) | IT1070428B (fr) |
| NL (1) | NL7613537A (fr) |
| SE (1) | SE408498B (fr) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4167029A (en) * | 1976-08-04 | 1979-09-04 | Burroughs Corporation | Jet distributor for end-wise pneumatic partitioning of disk pack |
| US4092681A (en) * | 1976-12-20 | 1978-05-30 | International Business Machines Corporation | Flexible disk file access mechanism |
| US4143408A (en) * | 1977-11-28 | 1979-03-06 | International Business Machines Corp. | External selector and internal controller for flexible disc stack |
| US4164768A (en) * | 1978-09-01 | 1979-08-14 | International Business Machines Corporation | Dual stage flow controller for self-ventilating disk pack |
| US4229774A (en) * | 1979-01-02 | 1980-10-21 | International Business Machines Corporation | Self-adapting flow restrictors |
| US7212377B1 (en) * | 2004-03-31 | 2007-05-01 | Western Digital Technologies, Inc. | Disk drive having apertures near the ID of a disk stack for allowing airflow to pass through the apertures to reduce disk flutter |
| US7224551B1 (en) * | 2004-05-15 | 2007-05-29 | Western Digital Technologies, Inc. | Disk drive having apertures aligned near the inner diameter of a disk stack for allowing airflow to pass through the apertures to reduce disk flutter |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3130393A (en) * | 1959-05-13 | 1964-04-21 | Sperry Rand Corp | Information storage device |
| NL122740C (fr) * | 1960-10-03 | |||
| NL6812450A (fr) * | 1968-08-31 | 1970-03-03 | ||
| US3835998A (en) * | 1973-07-02 | 1974-09-17 | Ibm | Edge locating apparatus |
| US3936878A (en) * | 1973-12-26 | 1976-02-03 | International Business Machines Corporation | Disc interface location |
| US3936880A (en) * | 1974-07-01 | 1976-02-03 | International Business Machines Corporation | Bistable deflection separation of flexible disks |
-
1975
- 1975-12-08 US US05/638,792 patent/US4051541A/en not_active Expired - Lifetime
-
1976
- 1976-10-27 FR FR7633195A patent/FR2335016A1/fr active Granted
- 1976-11-05 BE BE172132A patent/BE848054A/fr unknown
- 1976-11-09 IT IT29132/76A patent/IT1070428B/it active
- 1976-11-16 GB GB47659/76A patent/GB1503067A/en not_active Expired
- 1976-11-19 JP JP51138594A patent/JPS5270817A/ja active Granted
- 1976-11-29 CH CH1499676A patent/CH607226A5/xx not_active IP Right Cessation
- 1976-12-04 DE DE2655010A patent/DE2655010B2/de active Granted
- 1976-12-06 NL NL7613537A patent/NL7613537A/xx not_active Application Discontinuation
- 1976-12-07 SE SE7613730A patent/SE408498B/xx unknown
- 1976-12-07 ES ES454014A patent/ES454014A1/es not_active Expired
- 1976-12-08 CA CA267,392A patent/CA1074441A/fr not_active Expired
- 1976-12-08 BR BR7608248A patent/BR7608248A/pt unknown
- 1976-12-08 AU AU20384/76A patent/AU505465B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AU505465B2 (en) | 1979-11-22 |
| NL7613537A (nl) | 1977-06-10 |
| FR2335016B1 (fr) | 1978-05-12 |
| BR7608248A (pt) | 1977-11-29 |
| GB1503067A (en) | 1978-03-08 |
| JPS5642066B2 (fr) | 1981-10-02 |
| CH607226A5 (fr) | 1978-11-30 |
| SE7613730L (sv) | 1977-06-09 |
| CA1074441A (fr) | 1980-03-25 |
| DE2655010A1 (de) | 1977-07-14 |
| AU2038476A (en) | 1978-06-15 |
| JPS5270817A (en) | 1977-06-13 |
| SE408498B (sv) | 1979-06-11 |
| IT1070428B (it) | 1985-03-29 |
| FR2335016A1 (fr) | 1977-07-08 |
| ES454014A1 (es) | 1977-11-16 |
| US4051541A (en) | 1977-09-27 |
| DE2655010B2 (de) | 1978-06-29 |
| DE2655010C3 (fr) | 1979-03-15 |
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