BR7805656A - Arquivo de disco com base oca simetrica e metodo para fabrica-lo - Google Patents
Arquivo de disco com base oca simetrica e metodo para fabrica-loInfo
- Publication number
- BR7805656A BR7805656A BR7805656A BR7805656A BR7805656A BR 7805656 A BR7805656 A BR 7805656A BR 7805656 A BR7805656 A BR 7805656A BR 7805656 A BR7805656 A BR 7805656A BR 7805656 A BR7805656 A BR 7805656A
- Authority
- BR
- Brazil
- Prior art keywords
- manufacturing
- hole base
- disc file
- symmetric hole
- symmetric
- Prior art date
Links
Classifications
-
- 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
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
-
- 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
- G11B17/22—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from random access magazine of disc records
- G11B17/30—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from random access magazine of disc records wherein the playing unit is moved according to the location of the selected record
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US83834677A | 1977-09-30 | 1977-09-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
BR7805656A true BR7805656A (pt) | 1979-04-17 |
Family
ID=25276871
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR7805656A BR7805656A (pt) | 1977-09-30 | 1978-08-31 | Arquivo de disco com base oca simetrica e metodo para fabrica-lo |
Country Status (17)
Country | Link |
---|---|
JP (1) | JPS5455408A (da) |
AR (1) | AR221066A1 (da) |
BR (1) | BR7805656A (da) |
CA (1) | CA1109557A (da) |
CH (1) | CH629617A5 (da) |
DE (1) | DE2830828A1 (da) |
DK (1) | DK151739C (da) |
FI (1) | FI67141C (da) |
FR (1) | FR2404886A1 (da) |
GB (1) | GB2005454B (da) |
IE (1) | IE47039B1 (da) |
IT (1) | IT1174388B (da) |
NL (1) | NL7809812A (da) |
NO (1) | NO150255C (da) |
SE (1) | SE426112B (da) |
SU (1) | SU921475A3 (da) |
ZA (1) | ZA784308B (da) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57191871A (en) * | 1981-05-22 | 1982-11-25 | Hitachi Ltd | Magnetic disk storing device |
DE3581544D1 (de) * | 1985-10-31 | 1991-02-28 | Ibm | Plattenspeicher mit einem in die nabe des plattenstapels integrierten antriebsmotor. |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3815150A (en) * | 1972-06-23 | 1974-06-04 | Memorex Corp | Flexible disc drive |
-
1978
- 1978-05-25 CA CA304,089A patent/CA1109557A/en not_active Expired
- 1978-07-12 FR FR7821340A patent/FR2404886A1/fr active Granted
- 1978-07-13 DE DE19782830828 patent/DE2830828A1/de active Granted
- 1978-07-26 GB GB7831245A patent/GB2005454B/en not_active Expired
- 1978-07-28 IE IE1537/78A patent/IE47039B1/en not_active IP Right Cessation
- 1978-07-28 ZA ZA784308A patent/ZA784308B/xx unknown
- 1978-08-10 CH CH851678A patent/CH629617A5/de not_active IP Right Cessation
- 1978-08-31 BR BR7805656A patent/BR7805656A/pt unknown
- 1978-09-01 SE SE7809227A patent/SE426112B/sv not_active IP Right Cessation
- 1978-09-07 IT IT27411/78A patent/IT1174388B/it active
- 1978-09-08 JP JP10987878A patent/JPS5455408A/ja active Granted
- 1978-09-27 FI FI782943A patent/FI67141C/fi not_active IP Right Cessation
- 1978-09-28 NO NO783288A patent/NO150255C/no unknown
- 1978-09-28 NL NL7809812A patent/NL7809812A/xx not_active Application Discontinuation
- 1978-09-28 SU SU782670598A patent/SU921475A3/ru active
- 1978-09-29 AR AR273894A patent/AR221066A1/es active
- 1978-09-29 DK DK432678A patent/DK151739C/da not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CH629617A5 (de) | 1982-04-30 |
DE2830828B2 (da) | 1980-05-08 |
CA1109557A (en) | 1981-09-22 |
DK151739C (da) | 1988-06-13 |
IT7827411A0 (it) | 1978-09-07 |
NO150255B (no) | 1984-06-04 |
SU921475A3 (ru) | 1982-04-15 |
DK151739B (da) | 1987-12-28 |
FI67141C (fi) | 1985-01-10 |
FR2404886B1 (da) | 1984-11-16 |
FI67141B (fi) | 1984-09-28 |
NO150255C (no) | 1984-09-12 |
NL7809812A (nl) | 1979-04-03 |
SE426112B (sv) | 1982-12-06 |
NO783288L (no) | 1979-04-02 |
SE7809227L (sv) | 1979-03-31 |
ZA784308B (en) | 1980-02-27 |
JPS5455408A (en) | 1979-05-02 |
DK432678A (da) | 1979-03-31 |
FI782943A (fi) | 1979-03-31 |
DE2830828C3 (da) | 1981-01-15 |
GB2005454B (en) | 1982-02-10 |
GB2005454A (en) | 1979-04-19 |
AR221066A1 (es) | 1980-12-30 |
IE781537L (en) | 1979-03-30 |
IE47039B1 (en) | 1983-11-30 |
IT1174388B (it) | 1987-07-01 |
JPS5756151B2 (da) | 1982-11-27 |
DE2830828A1 (de) | 1979-04-05 |
FR2404886A1 (fr) | 1979-04-27 |
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