公开(公告)号：EP0579943A3

公开(公告)日：1994-06-29

申请号：EP93109149.0

申请日：1993-06-07

申请人： VERBATIM CORPORATION

发明人： Chappel, Gregory E.

IPC分类号： G11B23/03

CPC分类号： G11B23/0308

摘要： A shutter for use on a housing of a disk-based memory medium is formed of aluminum alloy sheet stock that is bent to form a spine with integral side legs or aprons. A surface-hardening coating is formed on both legs near the spine to increase the wear resistance of the shutter in the area where the shutter engages a shutter-opening mechanism that tends to introduce plastic deformation and metal debris after repeated contacts with the shutter-opening mechanism. The method for fabrication of the shutter includes stamping a slot in the sheet stock at a location which will form an edge of the shutter where plastic deformation occurs. A surface-hardening coating is formed on all exposed areas of the shutter, including the edge of the stamped slot. The shutter is trimmed and punched to its final size, and the shutter is bent to form a spine and a pair of legs, with the edges of the slots forming a wear-resistant edge on each leg near the spine.

摘要翻译： 用于基于盘的存储介质的壳体的快门由铝合金板料形成，该铝合金板材被弯曲以形成具有整体侧腿或围裙的脊柱。 在脊柱附近的两个腿上形成表面硬化涂层，以增加闸门在快门接合快门开启机构的区域中的耐磨性，该快门开启机构在与快门开口重复接触之后容易引入塑性变形和金属碎屑 机制。 制造快门的方法包括在形成塑料变形的快门的边缘的位置处冲压片材中的槽。 表面硬化涂层形成在快门的所有暴露区域上，包括冲压槽的边缘。 快门被修剪并冲压到其最终尺寸，并且快门被弯曲以形成脊柱和一对腿，其中边缘在狭槽附近的每个腿上形成耐磨边缘。

公开(公告)号：EP0579943A2

公开(公告)日：1994-01-26

申请号：EP93109149.0

申请日：1993-06-07

申请人： VERBATIM CORPORATION

发明人： Chappel, Gregory E.

IPC分类号： G11B23/03

CPC分类号： G11B23/0308

摘要： A shutter for use on a housing of a disk-based memory medium is formed of aluminum alloy sheet stock that is bent to form a spine with integral side legs or aprons. A surface-hardening coating is formed on both legs near the spine to increase the wear resistance of the shutter in the area where the shutter engages a shutter-opening mechanism that tends to introduce plastic deformation and metal debris after repeated contacts with the shutter-opening mechanism. The method for fabrication of the shutter includes stamping a slot in the sheet stock at a location which will form an edge of the shutter where plastic deformation occurs. A surface-hardening coating is formed on all exposed areas of the shutter, including the edge of the stamped slot. The shutter is trimmed and punched to its final size, and the shutter is bent to form a spine and a pair of legs, with the edges of the slots forming a wear-resistant edge on each leg near the spine.

摘要翻译： 用于基于盘的存储介质的壳体的快门由铝合金板料形成，该铝合金板材被弯曲以形成具有整体侧腿或围裙的脊柱。 在脊柱附近的两个腿上形成表面硬化涂层，以增加闸门在快门接合快门开启机构的区域中的耐磨性，该快门开启机构在与快门开口重复接触之后容易引入塑性变形和金属碎屑 机制。 制造快门的方法包括在形成塑料变形的快门的边缘的位置处冲压片材中的槽。 表面硬化涂层形成在快门的所有暴露区域上，包括冲压槽的边缘。 快门被修剪并冲压到其最终尺寸，并且快门被弯曲以形成脊柱和一对腿，其中边缘在狭槽附近的每个腿上形成耐磨边缘。

公开(公告)号：EP0172439B1

公开(公告)日：1989-07-12

申请号：EP85109334.4

申请日：1985-07-25

申请人： VERBATIM CORPORATION

发明人： Bond, Charles R.

IPC分类号： G11B23/28

CPC分类号： G11B20/00746 ,  G11B20/00086 ,  G11B20/00094 ,  G11B20/0021 ,  G11B20/00586 ,  G11B20/0071 ,  G11B20/00818

公开(公告)号：EP0259451A1

公开(公告)日：1988-03-16

申请号：EP87901941.0

申请日：1987-02-27

申请人： VERBATIM CORPORATION

发明人： BOND, Charles, R.

IPC分类号： G11B5

CPC分类号： G11B5/56 ,  G11B5/00

摘要： Un disque magnétique (10) comprend une paire de pistes (30, 32) de test d'azimutage d'une largeur relativement étroite dans le sens des pistes et situées à proximité l'une de l'autre de sorte qu'une tête magnétique (28), dont on veut mesurer l'azimutage, couvre les deux pistes en même temps. Chaque piste de test comprend un motif d'enregistrement comprenant une série de domaines magnétiques séparés et écartés uniformément (34) présentant une orientation alternée, le motif d'enregistrement sur une piste présentant une phase particulière par rapport au motif d'enregistrement sur l'autre piste. Lors de la reproduction, la tête magnétique produit un signal de reproduction composite comprenant une série de crêtes localisées, l'intervalle de temps entre des crêtes adjacentes étant une fonction de l'azimutage de la tête.

公开(公告)号：EP0086877A1

公开(公告)日：1983-08-31

申请号：EP82110332.2

申请日：1982-11-09

申请人： VERBATIM CORPORATION

发明人： Hanlon, Brian

IPC分类号： G11B27/36

CPC分类号： G11B20/18

摘要： A standardized, calibrated drop-out disk is provided to test disk certification equipment. The disk is a previously certified high quality disk having one or more selected tracks thereon upon which data is recorded at a standard level over some portions of the track and at differing levels on other portions of the track known as drop-out portions. The magnitude and playback amplitude of the drop-out portions is selected to be less than that of the remaining portions of the track. Methods of creating the standardized drop-out disk utilizing either varying write currents delivered to the head for the different portions of the track, and/or write heads of different width being utilized are also provided. The standardized drop-out disks are utilized to test the sensitivity and accuracy of disk certification equipment as it is used to test production of magnetic disks.

公开(公告)号：EP0179299A3

公开(公告)日：1987-01-14

申请号：EP85112177

申请日：1985-09-25

申请人： VERBATIM CORPORATION

发明人： Sturtevant-Stuart, Ronald M.

IPC分类号： G11B05/012

CPC分类号： G11B20/00586 ,  G11B5/012 ,  G11B5/455 ,  G11B5/56 ,  G11B5/59627 ,  G11B19/00 ,  G11B20/00086 ,  G11B21/24 ,  G11B33/10 ,  G11B2220/2508

摘要： An alignment disk including data tracks written in a spiral configuration, through the use of microstepping techniques, to accurately test a variety of transducer head parameters including head alignment, resolution and offset. The tracks include standard spiral tracks, S-shaped clamping spiral tracks and bordered spiral tracks, comprising a sequence of discrete address blocks each containing unique identifying information. The spacing of each address block is precisely known and because each is separately identifiable transducer head location can be precisely ascertained. The microstepping technique may also be employed to create a copy protected disk for disk drives having half-track read and write capabilities.

公开(公告)号：EP0179299A2

公开(公告)日：1986-04-30

申请号：EP85112177.2

申请日：1985-09-25

申请人： VERBATIM CORPORATION

发明人： Sturtevant-Stuart, Ronald M.

IPC分类号： G11B5/012

CPC分类号： G11B20/00586 ,  G11B5/012 ,  G11B5/455 ,  G11B5/56 ,  G11B5/59627 ,  G11B19/00 ,  G11B20/00086 ,  G11B21/24 ,  G11B33/10 ,  G11B2220/2508

摘要： An alignment disk including data tracks written in a spiral configuration, through the use of microstepping techniques, to accurately test a variety of transducer head parameters including head alignment, resolution and offset. The tracks include standard spiral tracks, S-shaped clamping spiral tracks and bordered spiral tracks, comprising a sequence of discrete address blocks each containing unique identifying information. The spacing of each address block is precisely known and because each is separately identifiable transducer head location can be precisely ascertained. The microstepping technique may also be employed to create a copy protected disk for disk drives having half-track read and write capabilities.

公开(公告)号：EP0050485B1

公开(公告)日：1985-04-17

申请号：EP81304820.4

申请日：1981-10-15

申请人： VERBATIM CORPORATION

发明人： Temesvary, Louis

IPC分类号： B65D6/02

CPC分类号： B65D43/24 ,  B65D43/162 ,  G11B33/0438

公开(公告)号：EP0121590A2

公开(公告)日：1984-10-17

申请号：EP83108525.3

申请日：1983-08-30

申请人： VERBATIM CORPORATION

发明人： Bond, Charles R.

IPC分类号： G11B5/58 ,  G11B5/56 ,  G11B19/28

CPC分类号： G11B27/36 ,  G11B5/5543

摘要： An alignment testing device comprising a magnetic media with data tracks in nonstandard locations with bidirectionally progressive degrees of misalignment for testing the alignment of the transducer head in a magnetic storage device such as a floppy disk drive. The alignment testing device allows the user to determine the boundaries of track alignments that the transducer head can read, and thereby determine any discrepency between the heads actual alignment and correct alignment.

公开(公告)号：EP0052865A3

公开(公告)日：1982-12-08

申请号：EP81109776

申请日：1981-11-19

申请人： VERBATIM CORPORATION

发明人： Conner, Alfred W. ,  Anderson, Reid J.

IPC分类号： G11B17/02 ,  G11B03/62

CPC分类号： G11B17/00 ,  G11B23/0035 ,  G11B23/0332

摘要： An improved reinforcement member for a central aperture in a flexible recording disk and a method for forming the same. The improved reinforcement comprises an integral, annular-shaped ring formed on one or both sides of the flexible recording disk about the central aperture thereof. This improved reinforcement is formed by transfer printing a liquid image of the reinforcement member onto a side surface of the flexible recording disk and then subsequently solidifying that liquid image. The liquid image to be transfer printed onto the flexible recording disk is first established by filling a metering reservoir shaped to be an image of the reinforcement member with a solidifying liquid. A terminal end of complaint rubber tampon is then first contacted to the reservoir thereby picking up the liquid image which is then contacted to the surface of the flexible disk to be deposited there. In the preferred embodiment of this invention, the solidifying liquid material comprises a cross-linkable, non-solvent based polyolefin monomer material in combination with a cross-linking agent which, when exposed to ultraviolet light, creates free radicals whereby the monomer material is caused to cross-link and hence polymerize into a solid.