公开(公告)号：US3337159A

公开(公告)日：1967-08-22

申请号：US48982765

申请日：1965-09-24

Applicant: IBM

Inventor： HOEHMANN HENRY G ,  LYON JAMES L

IPC: B65G51/00

CPC classification number: B65G51/32 ,  B65G47/5104

公开(公告)号：US3332068A

公开(公告)日：1967-07-18

申请号：US30404463

申请日：1963-08-23

Applicant: IBM

Inventor： MCLAUGHLIN JOHN A ,  HOEHMANN HENRY G ,  RICKARD LA VERNE E

IPC: G06F3/09 ,  G06F13/22 ,  H04L12/54

CPC classification number: H04L12/54 ,  G06F3/09 ,  G06F13/22

公开(公告)号：US3272456A

公开(公告)日：1966-09-13

申请号：US38837764

申请日：1964-08-10

Applicant: IBM

Inventor： HOEHMANN HENRY G

IPC: B65G51/24 ,  G06K17/00

CPC classification number: G06K17/0012 ,  B65G51/24 ,  G06K17/00

公开(公告)号：US3882473A

公开(公告)日：1975-05-06

申请号：US2078170

申请日：1970-03-18

Applicant: IBM

Inventor： HOEHMANN HENRY G

IPC: G11B5/49 ,  G11B5/55 ,  G11B5/60 ,  G11B23/03 ,  G11C11/02

CPC classification number: G11B5/5521 ,  G11B5/4969 ,  G11B5/6005 ,  G11B23/0323

Abstract: A magnetic disk storage file employs a plurality of magnetic transducers for each recording disk surface, and at least one transducer is associated with each data track. The transducer assemblies are supported by racks, which are mounted in stacked fashion to pivotable posts. The posts are fixed in a precise position relative to the true axis of the spindle on which the storage disks are mounted for rotation. The posts are pivotable so that the transducer assemblies and racks may be retracted for easy replacement, and returned to the same precise position and alignment relative to the data disk surface, whereby each transducer bears the same relation to its associated data track as it had prior to retraction.

公开(公告)号：US3311321A

公开(公告)日：1967-03-28

申请号：US49208565

申请日：1965-10-01

Applicant: IBM

Inventor： HOEHMANN HENRY G

IPC: G06K17/00

CPC classification number: G06K17/0012

公开(公告)号：US3300763A

公开(公告)日：1967-01-24

申请号：US30334063

申请日：1963-08-20

Applicant: IBM

Inventor： HOEHMANN HENRY G

IPC: G06F13/22 ,  H04L12/54

CPC classification number: G06F13/22 ,  H04L12/54

公开(公告)号：CA829145A

公开(公告)日：1969-12-09

申请号：CA829145D

Applicant: IBM

Inventor： HOEHMANN HENRY G ,  JUNGE BJARNE ,  LYON JAMES L

公开(公告)号：CA797562A

公开(公告)日：1968-10-29

申请号：CA797562D

Applicant: IBM

Inventor： HOEHMANN HENRY G

公开(公告)号：CA781311A

公开(公告)日：1968-03-26

申请号：CA781311D

Applicant: IBM

Inventor： HOEHMANN HENRY G

公开(公告)号：CA759171A

公开(公告)日：1967-05-16

申请号：CA759171D

Applicant: IBM

Inventor： MCLAUGHLIN JOHN A ,  HOEHMANN HENRY G ,  RICKARD LAVERNE E