FR2017128A1 - - Google Patents
Info
- Publication number
- FR2017128A1 FR2017128A1 FR6928039A FR6928039A FR2017128A1 FR 2017128 A1 FR2017128 A1 FR 2017128A1 FR 6928039 A FR6928039 A FR 6928039A FR 6928039 A FR6928039 A FR 6928039A FR 2017128 A1 FR2017128 A1 FR 2017128A1
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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
-
- 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
- G11B17/32—Maintaining desired spacing between record carrier and head, e.g. by fluid-dynamic spacing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
- G11B5/82—Disk carriers
- G11B5/825—Disk carriers flexible discs
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6812450A NL6812450A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1968-08-31 | 1968-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2017128A1 true FR2017128A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1970-05-15 |
Family
ID=19804516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR6928039A Withdrawn FR2017128A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1968-08-31 | 1969-08-14 |
Country Status (6)
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3703713A (en) * | 1971-09-24 | 1972-11-21 | Univ Iowa State Res Found | Variable diameter disc pack with cooperating head |
| US3731292A (en) * | 1971-09-27 | 1973-05-01 | Arvin Ind Inc | Finger between flexible disc and backing plate |
| US3846837A (en) * | 1973-06-20 | 1974-11-05 | Intelligent Memory Syst Inc | Stacked flexible disc unit with head plugs |
| US3810243A (en) * | 1973-07-02 | 1974-05-07 | Ibm | Selectively tensioned transducer assembly for operation in compliant relation to individual memory discs of a partitionable aggregate of rotating flexible discs |
| US3838461A (en) * | 1973-07-02 | 1974-09-24 | Ibm | Aerodynamic partitioning mechanism for random access memory with flexible rotating discs |
| US3838462A (en) * | 1973-07-02 | 1974-09-24 | Ibm | Partitionable disc memory with flexible discs and conformally suspended head |
| US3867723A (en) * | 1973-11-07 | 1975-02-18 | Ibm | Multiple flexible disk file |
| US3994017A (en) * | 1974-07-01 | 1976-11-23 | International Business Machines Corporation | Random access disk file with axial translation of disks and end plate |
| US3936880A (en) * | 1974-07-01 | 1976-02-03 | International Business Machines Corporation | Bistable deflection separation of flexible disks |
| US4051541A (en) * | 1975-12-08 | 1977-09-27 | International Business Machines Corporation | Access to floppy disk stack |
| US4348705A (en) * | 1978-11-07 | 1982-09-07 | Sperry Corporation | Random access flexible disk memory |
| JPS5984386A (ja) * | 1982-11-08 | 1984-05-16 | Hitachi Ltd | 磁気ディスク装置 |
| US4821130A (en) * | 1987-09-04 | 1989-04-11 | Digital Equipment Corporation | Disk extender baffles |
| JP2006139860A (ja) * | 2004-11-12 | 2006-06-01 | Matsushita Electric Ind Co Ltd | 光ディスク装置 |
| CN113232242B (zh) * | 2021-04-23 | 2024-03-26 | 芜湖市晟源电器有限公司 | 一种汽车车灯注塑模具用切换组件 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2751274A (en) * | 1952-04-01 | 1956-06-19 | Rca Corp | Magnetic recording |
| US2811709A (en) * | 1954-01-12 | 1957-10-29 | Teleregister Corp | Multiple-head scanning device for magnetic disk records |
| US3110889A (en) * | 1960-05-02 | 1963-11-12 | Lab For Electronics Inc | Magnetic disc storage device |
| NL6603388A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1965-03-30 | 1966-10-03 | ||
| US3471843A (en) * | 1965-10-20 | 1969-10-07 | Max L Libman | Flexible magnetic disc memory |
-
1968
- 1968-08-31 NL NL6812450A patent/NL6812450A/xx unknown
-
1969
- 1969-08-06 DE DE19691939996 patent/DE1939996A1/de active Pending
- 1969-08-14 FR FR6928039A patent/FR2017128A1/fr not_active Withdrawn
- 1969-08-28 GB GB1230909D patent/GB1230909A/en not_active Expired
- 1969-08-29 JP JP44068103A patent/JPS4912409B1/ja active Pending
- 1969-08-29 US US854157A patent/US3618055A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US3618055A (en) | 1971-11-02 |
| NL6812450A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1970-03-03 |
| GB1230909A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1971-05-05 |
| JPS4912409B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-03-25 |
| DE1939996A1 (de) | 1970-03-05 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |