公开(公告)号：US3668658A

公开(公告)日：1972-06-06

申请号：US3668658D

申请日：1969-12-22

Applicant: IBM

Inventor： FLORES RALPH ,  THOMPSON HERBERT E

IPC: G11B3/68 ,  G11B5/82 ,  G11B23/033 ,  G11B23/50 ,  G11B23/02 ,  G11B25/04

CPC classification number: G11B23/505 ,  G11B5/825 ,  G11B23/0332

Abstract: In a magnetic recording system, the combination comprising a rotary magnetic record disk and a cover for containing the disk. The cover has its inner surfaces in frictional contact with the adjacent surfaces of the disk. Furthermore, the disk is rotatable while the cover is maintained stationary in the magnetic recording system. The cover includes means for cleaning the surface of the disk during rotation of the disk.

Abstract translation: 在磁记录系统中，包括旋转磁记录盘和用于容纳盘的盖的组合。 盖子的内表面与盘的相邻表面摩擦接触。 此外，当磁盘保持静止在磁记录系统中时，磁盘是可旋转的。 盖子包括用于在盘旋转期间清洁盘表面的装置。

公开(公告)号：CA912698A

公开(公告)日：1972-10-17

申请号：CA912698D

Applicant: IBM

Inventor： FLORES RALPH ,  THOMPSON HERBERT E

IPC: G11B5/82 ,  G11B23/02 ,  G11B23/033 ,  G11B23/50 ,  G11B25/04

公开(公告)号：DE1174443B

公开(公告)日：1964-07-23

申请号：DEI0015285

申请日：1958-08-22

Applicant: IBM DEUTSCHLAND

Inventor： JOHNSON DONALD DEAN ,  FLORES RALPH ,  VOGEL MARCEL JOSEPH

IPC: C09D5/23 ,  C09D129/10 ,  C09D163/00 ,  G11B5/62 ,  G11B5/72

公开(公告)号：GB1260637A

公开(公告)日：1972-01-19

申请号：GB5331770

申请日：1970-11-10

Applicant: IBM

Inventor： DAWSON CLIFFORD IRVING ,  FLORES RALPH ,  KINSEY JOHN ORVILLE

IPC: G11B3/68 ,  G11B5/82 ,  G11B23/033 ,  G11B23/50

Abstract: 1,260,637. Magnetic disc records. INTERNATIONAL BUSINESS MACHINES CORP. 10 Nov., 1970 [22 Dec., 1969], No. 53317/70. Heading G5R. A magnetic disc 10 is enclosed in a jacket 12 having an aperture 26, 46, enabling the disc 10 to be rotated by a drive 11 while the jacket 12 remains stationary, and a cleaning material 24, 44 on at least one inner surface effective to wipe the adjacent disc face during rotation thereof. A transducer 17 engages the disc through an elongated aperture 27 and an opposing pressure pad may be applied through a similar aperture 47 in the other side of the jacket. A lamp 13 and a photo-cell 15 are aligned with apertures 28, 48 to detect the passage of holes 19 as the disc 10 rotates. No apertures 28, 48 are required if the jacket is transparent.

公开(公告)号：GB1013445A

公开(公告)日：1965-12-15

申请号：GB1583962

申请日：1962-04-25

Applicant: IBM

Inventor： JOHNSON DONALD DEAN ,  FLORES RALPH ,  VOGEL MARCEL JOSEPH

IPC: C09D5/23 ,  C09D163/02 ,  G11B5/702

Abstract: A coating composition comprises a solution of a diglycidyl poly-ether of a polyhydric phenol having an epoxide equivalent not less than 450, polyvinyl methyl ether and a methylol phenol ether with an unsaturated aliphatic ether group containing at least three carbon atoms and optionally one or more halogen atoms, e.g. the allyl ether of methylol phenol. The eposy resins used are of the Epon series of general formula in which n is not greater than 12, e.g. Epon 1004. The composition may include a curing catalyst, e.g. pyromellitic dianhydride, dodecenyl succinic anhydride, methyl Nadic anhydride, tetrahydrophthalic anhydride, dimethyl cocoa amines, or, preferably, hexahydrophthalic anhydride. Butyrolactone and a silicone resin, e.g. a methylphenylpolysiloxane, may also be included in the compositions. Suitable solvents are toluene, xylol, isopropyl alcohol, isophorone and amyl ethyl ketone. The compositions may also include pigments, especially magnetic particles, e.g. magnetic iron oxide to give magnetic coatings, which may be applied to an aluminium disc for storing information.