DE3538480A1 - Grounded main memory plate arrangement - Google Patents

Grounded main memory plate arrangement

Info

Publication number
DE3538480A1
DE3538480A1 DE19853538480 DE3538480A DE3538480A1 DE 3538480 A1 DE3538480 A1 DE 3538480A1 DE 19853538480 DE19853538480 DE 19853538480 DE 3538480 A DE3538480 A DE 3538480A DE 3538480 A1 DE3538480 A1 DE 3538480A1
Authority
DE
Grant status
Application
Patent type
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.)
Ceased
Application number
DE19853538480
Other languages
German (de)
Inventor
Richard Pearson Casmey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PRIAM CORP
Original Assignee
PRIAM CORP
Priority date (The priority date 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 date listed.)
Filing date
Publication date

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/50Reconditioning of record carriers; Cleaning of record carriers; Carrying-off electrostatic charges
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B25/00Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
    • G11B25/04Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card
    • G11B25/043Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card using rotating discs
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00Constructional parts, details or accessories not provided for in the preceding groups
    • G11B33/14Reducing influence of physical parameters, e.g. temperature change, moisture, dust
    • G11B33/1493Electro-Magnetic Interference [EMI] or Radio Frequency Interference [RFI] shielding; grounding of static charges
DE19853538480 1984-10-29 1985-10-29 Grounded main memory plate arrangement Ceased DE3538480A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US66556884 true 1984-10-29 1984-10-29

Publications (1)

Publication Number Publication Date
DE3538480A1 true true DE3538480A1 (en) 1986-04-30

Family

ID=24670642

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19853538480 Ceased DE3538480A1 (en) 1984-10-29 1985-10-29 Grounded main memory plate arrangement

Country Status (3)

Country Link
JP (1) JPS61160876A (en)
DE (1) DE3538480A1 (en)
GB (1) GB8526476D0 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4006999A1 (en) * 1989-03-31 1990-10-18 Raymond Engineering Drive for a magnetic disk storage unit
DE4221429A1 (en) * 1991-07-01 1993-01-07 Papst Motoren Gmbh & Co Kg Axially compact direct drive pancake type motor for hard disc memory - has central fixed stator supporting outer rotor assembly on main bearing with permanent magnet ring set into space between rotor and stator and fixed to rotor
US5594606A (en) * 1991-06-29 1997-01-14 Papst Licensing Gmbh Disk storage drive for maintaining precision during thermal variations
USRE35792E (en) * 1981-09-07 1998-05-12 Papst Licensing, Gmbh Disk storage drive
US5864443A (en) * 1981-09-07 1999-01-26 Papst Licensing, Gmbh Disk storage device having a detachable coupling ring in the hub
US5945751A (en) * 1991-06-28 1999-08-31 Papst Licensing Gmbh Disk storage device having a spindle driving motor
USRE37058E1 (en) 1980-05-10 2001-02-20 Papst Licensing Gmbh & Co. Kg Disk storage device having contamination seals
USRE38601E1 (en) 1980-05-10 2004-09-28 Papst Licensing, GmbH & Co. KG Disk storage device having a radial magnetic yoke feature
USRE38662E1 (en) 1980-05-10 2004-11-30 Papst Licensing Gmbh & Co. Kg Disk storage device having a sealed bearing tube
USRE38673E1 (en) 1980-05-10 2004-12-21 Papst Licensing Gmbh & Co. Kg Disk storage device having a hub sealing member feature
DE4136996B4 (en) * 1991-11-11 2011-03-10 Papst Licensing Gmbh & Co. Kg Disk drive

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4779165A (en) * 1981-09-07 1988-10-18 Papst-Motoren Gmbh & Co. Kg Disk storage drive
GB2173049B (en) * 1985-03-30 1990-02-14 Papst Motoren Gmbh & Co Kg Disk store drive
US4777549A (en) * 1986-10-14 1988-10-11 International Business Machines Corporation Spindle filter in a data recording disk file
JPH01105381A (en) * 1987-10-16 1989-04-21 Toshiba Corp Disk rotating mechanism for magnetic disk device
US4999724A (en) * 1989-11-13 1991-03-12 Hewlett-Packard Company Disk drive having an electrically isolated disk stack
US6271988B1 (en) 1997-01-04 2001-08-07 Papst Licensing Gmbh & Co. Kg Disk storage device with improved spindle torque and acceleration
WO1998044500A1 (en) * 1997-04-01 1998-10-08 Papst Licensing Gmbh Disk storage device with improved spindle torque and acceleration
US6344946B1 (en) 1997-04-01 2002-02-05 Papst Licensing Gmbh Disk storage device with improved spindle torque and acceleration
EP0869495B1 (en) * 1997-04-01 2007-08-29 Papst Licensing GmbH & Co. KG Disk storage device with improved spindle torque and acceleration

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8032477U1 (en) * 1980-12-05 1983-03-17 Papst-Motoren Gmbh & Co Kg, 7742 St Georgen, De Drive means for magnetic disk storage

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB489956A (en) * 1936-02-08 1938-08-08 Bauer Eugen Gmbh Improvements in or relating to sound reproducing apparatus
GB539492A (en) * 1939-03-14 1941-09-12 Philips Nv Improvements in radio-gramophones
US3691542A (en) * 1970-11-02 1972-09-12 Diablo Systems Inc Magnetic memory disk drive apparatus with reduced r. f. noise
JPS5737295Y2 (en) * 1972-05-22 1982-08-17
DE2330289B2 (en) * 1972-06-20 1976-06-16 Magnettonplatte for film storage
GB1531086A (en) * 1975-03-10 1978-11-01 Rca Corp Overhead signal pickup drive apparatus
JPS628397B2 (en) * 1979-10-04 1987-02-23 Tokyo Shibaura Electric Co

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8032477U1 (en) * 1980-12-05 1983-03-17 Papst-Motoren Gmbh & Co Kg, 7742 St Georgen, De Drive means for magnetic disk storage

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE37058E1 (en) 1980-05-10 2001-02-20 Papst Licensing Gmbh & Co. Kg Disk storage device having contamination seals
USRE38673E1 (en) 1980-05-10 2004-12-21 Papst Licensing Gmbh & Co. Kg Disk storage device having a hub sealing member feature
USRE38662E1 (en) 1980-05-10 2004-11-30 Papst Licensing Gmbh & Co. Kg Disk storage device having a sealed bearing tube
USRE38601E1 (en) 1980-05-10 2004-09-28 Papst Licensing, GmbH & Co. KG Disk storage device having a radial magnetic yoke feature
USRE38179E1 (en) 1980-05-10 2003-07-08 Papst Licensing Gmbh & Co. Kg Disk storage device having a three-phase brushless DC underhub configured spindle motor
USRE38178E1 (en) 1980-05-10 2003-07-08 Papst Licensing Gmbh & Co. Kg Disk storage device having an underhub spindle motor
USRE35792E (en) * 1981-09-07 1998-05-12 Papst Licensing, Gmbh Disk storage drive
US5864443A (en) * 1981-09-07 1999-01-26 Papst Licensing, Gmbh Disk storage device having a detachable coupling ring in the hub
DE4006999A1 (en) * 1989-03-31 1990-10-18 Raymond Engineering Drive for a magnetic disk storage unit
US5945751A (en) * 1991-06-28 1999-08-31 Papst Licensing Gmbh Disk storage device having a spindle driving motor
US5796548A (en) * 1991-06-29 1998-08-18 Papst Licensing Gmbh Disk storage device having spindle assembly with ring enclosure
US5594606A (en) * 1991-06-29 1997-01-14 Papst Licensing Gmbh Disk storage drive for maintaining precision during thermal variations
USRE37455E1 (en) 1991-07-01 2001-11-27 Papst Licensing Gmbh Axially compact direct drive for storage disk hub
DE4221429C2 (en) * 1991-07-01 1999-01-14 Papst Motoren Gmbh & Co Kg Disk drive, especially for hard-disk space
DE4221429A1 (en) * 1991-07-01 1993-01-07 Papst Motoren Gmbh & Co Kg Axially compact direct drive pancake type motor for hard disc memory - has central fixed stator supporting outer rotor assembly on main bearing with permanent magnet ring set into space between rotor and stator and fixed to rotor
DE4136996B4 (en) * 1991-11-11 2011-03-10 Papst Licensing Gmbh & Co. Kg Disk drive

Also Published As

Publication number Publication date Type
JPS61160876A (en) 1986-07-21 application
GB8526476D0 (en) 1985-12-04 grant
GB2166586A (en) 1986-05-08 application

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8125 Change of the main classification

Ipc: G11B 33/14

8131 Rejection