公开(公告)号：US3581298A

公开(公告)日：1971-05-25

申请号：US3581298D

申请日：1969-04-17

Applicant: BURROUGHS CORP

Inventor： BILLAWALA SHAHBUDDIN A

IPC: G11B21/21 ,  G11B5/60 ,  F16F1/02

CPC classification number: G11B5/6005

Abstract: A support device for floating a magnetic head on a fluid atmosphere adjacent a recording surface has several features in a one piece construction. The support device is a substantially flat, thin body structure of elastic material having perforations therein positioned and shaped to form a platform to which a magnetic head is bonded. A portion of the platform is permanently deformed to lie forward of the remainder of the body structure so the magnetic head is spaced from the remainder of the body structure. A pair of mounting tabs extend inwardly from opposite sides of the outer perimeter of the support device. The portions of the support device adjacent to the tabs are bowed inwardly away from the tabs. A cable support bracket is directly joined to the tabs so forces exerted on the bracket do not effect the position of the magnetic head.

公开(公告)号：US3678482A

公开(公告)日：1972-07-18

申请号：US3678482D

申请日：1970-08-26

Applicant: BURROUGHS CORP

Inventor： BILLAWALA SHAHBUDDIN A

IPC: F16C33/10 ,  G11B5/60 ,  G11B21/20

CPC classification number: F16C33/10 ,  G11B5/6064 ,  G11B5/6082

Abstract: A magnetic memory system having a recording head adjacent a movable disk is described wherein the recording head is separated from the disk by a fluid bearing. In a preferred embodiment, the bearing comprises a taper land bearing having a main bearing face preceded by a converging bearing face. A narrow slot provides a hydrodynamic separation between the trailing edge of the main face and the leading edge of a satellite face coplanar with the main bearing face. A diverging face is provided aft of the satellite face. In operation the recording head is retracted until the disk is up to its usual rotational speed, and then the head is advanced toward the disk to its final floating position in the order of 30 microinches from the surface. The satellite face and diverging face cooperate during the transitional ''''landing'''' of the recording head to produce a fluid film force that pivots the recording head to its final floating position without contact between the disk and head.

Abstract translation: 描述了具有与活动盘相邻的记录头的磁记录系统，其中记录头通过流体轴承与盘分离。 在优选实施例中，轴承包括具有主轴承面的锥形凸台轴承，其前面是会聚的轴承面。 狭窄的槽口在主面的后缘和与主支承面共面的卫星表面的前缘之间提供流体动力学分离。 在卫星面后方提供了一个分散的脸。 在操作中，记录头缩回直到盘达到其通常的转速，然后头朝向盘前进至其最终浮动位置，从表面开始大约30微英寸。 在记录头的过渡“着陆”期间，卫星面和发散面配合，以产生使记录头枢转到其最终浮动位置而没有盘与头之间的接触的流体膜力。

公开(公告)号：US3582920A

公开(公告)日：1971-06-01

申请号：US3582920D

申请日：1969-08-04

Applicant: BURROUGHS CORP

Inventor： BILLAWALA SHAHBUDDIN A

IPC: G11B21/21 ,  G11B5/60 ,  F16F1/02

CPC classification number: G11B5/6005

Abstract: A support device for floating a magnetic head assembly on a fluid atmosphere is asymmetrically dimensioned so it assumes a positive angle of approach on application of a normal force at its center point by an actuating mechanism. The support device is a substantially flat, thin body structure of elastic material having perforations therein positioned and shaped to form a platform, an inner frame surrounding the platform, an outer frame surrounding the inner frame, a first pair of connecting members between opposite sides of the platform and the inner frame, and a second pair of connecting members between opposite sides of the inner frame and the outer frame disposed transverse to the first pair of connecting members. In one embodiment, the platform that supports the head assembly is permanently deformed to lie in a plane forward of and disposed at an acute angle to the remainder of the support device. In other embodiments, the length and/or width of opposite legs of the frames are unequal, thereby normally causing unbalanced deflection of the support device responsive to the actuating mechanism.

公开(公告)号：US3889295A

公开(公告)日：1975-06-10

申请号：US40480473

申请日：1973-10-09

Applicant: BURROUGHS CORP

Inventor： BILLAWALA SHAHBUDDIN A

IPC: G11B5/17 ,  G11B5/29 ,  G11B5/31 ,  G11B5/20

CPC classification number: G11B5/3103 ,  G11B5/17 ,  G11B5/29 ,  G11B5/313

Abstract: One-turn conductor patterns for a multi-core head assembly are designed to provide for a minimum of cable connections and to maximize track width. The specific configuration of conductor patterns exhibiting these advantages may vary, except for a common criterion. The terminal pads of the conductor patterns to which electronic read/write circuit cables are connected are minimized to the greatest extent possible by a conductor pattern layout that results in one terminal pad being common to as many one for each core, single-turn conductors, as possible.

Abstract translation: 用于多芯头组件的单向导体图案被设计为提供最小的电缆连接并且最大化磁道宽度。 具有这些优点的导体图案的具体构造可以变化，除了通常的标准。 电子读/写电路电缆连接的导体图形的端子焊盘通过导体图案布局最大程度地最小化，导体图案布局导致一个端子焊盘与每个芯，单匝导体一样多， 尽可能。

公开(公告)号：US3298007A

公开(公告)日：1967-01-10

申请号：US27302763

申请日：1963-04-15

Applicant: BURROUGHS CORP

Inventor： MACDONALD DUNCAN N ,  BILLAWALA SHAHBUDDIN A ,  STANSELL ALPHEUS F

IPC: G06K17/00

CPC classification number: G06K17/0006 ,  G06K17/00

公开(公告)号：US3657710A

公开(公告)日：1972-04-18

申请号：US3657710D

申请日：1971-01-13

Applicant: BURROUGHS CORP

Inventor： BILLAWALA SHAHBUDDIN A

IPC: F16C33/10 ,  G11B5/60 ,  G11B21/20

CPC classification number: G11B5/6005 ,  F16C33/10

Abstract: A fluid film bearing particularly suitable for the magnetic recording head of a rotating disk magnetic memory is described. The head has a bearing surface which is adapted to float in very close proximity to a magnetic memory surface moving at a relatively high velocity. The relative velocities are such that a stable film of air, a few tens of micro-inches thick, separates the recording head from the memory element. A conventional stabilizing bearing surface is provided along the leading edge of the plane bearing surface and angulated at a very small angle relative thereto. In the improved bearing a second stabilizing bearing surface is disposed along the leading edge of the first stabilizing bearing surface and angulated relative thereto so as to be at a greater angle relative to the plane bearing surface than is the first stabilizing bearing surface.

Abstract translation: 描述了特别适用于旋转盘式磁存储器的磁记录头的流体膜轴承。 头部具有支承表面，其适于浮动在非常接近以较高速度移动的磁记录表面。 相对速度使得稳定的几十微英寸厚的空气膜将记录头与存储元件分开。 常规的稳定轴承表面沿着平面支承表面的前缘设置并且以相对于其的非常小的角度成角度。 在改进的轴承中，第二稳定轴承表面沿着第一稳定轴承表面的前缘设置并且相对于第一稳定轴承表面成角度相对于平面支承表面比第一稳定轴承表面处于更大的角度。

公开(公告)号：US3310792A

公开(公告)日：1967-03-21

申请号：US28150463

申请日：1963-05-20

Applicant: BURROUGHS CORP

Inventor： GROOM ROBERT G ,  BILLAWALA SHAHBUDDIN A ,  STANSELL ALPHEUS F

IPC: G11B5/17 ,  G11B5/60

CPC classification number: G11B5/17 ,  G11B5/6005

公开(公告)号：US3633189A

公开(公告)日：1972-01-04

申请号：US3633189D

申请日：1969-09-24

Applicant: BURROUGHS CORP

Inventor： BILLAWALA SHAHBUDDIN A

IPC: G11B5/17 ,  G11B5/29 ,  H01B7/08 ,  H05K1/11 ,  G11B5/12 ,  H05K1/18

CPC classification number: H05K1/118 ,  G11B5/17 ,  G11B5/29 ,  G11B5/295 ,  G11B5/486 ,  H01B7/08 ,  H05K2201/052 ,  H05K2201/055 ,  H05K2201/09409

Abstract: An elongated flat strip of insulative material having at one end a central portion, lateral portions disposed on either side of the central portion, and transverse portions joining the lateral portions to the central portion. The central portion protrudes further than the lateral portions. Wire-connecting pads are concentrated in a line across the central portion and the lateral portions. Conductors are arranged along the length of the strip. The ends of the conductors terminate respectively at the different pads. The conductors terminating at the pads on the lateral portions are mounted along the outer edges of the strip and the conductors terminating at the pads on the central portion are arranged along the center of the strip. As a result, the conductors lead to each portion without passing the pads on the other portions. Each transverse portion has a double-reverse bend that places the pads on the lateral portions in a row stepped back from and beside the row of pads on the central portion. The end of the strip lies in a recess in a magnetic head assembly. The head windings are directly connected to the pads.

Abstract translation: 一种细长的绝缘材料扁平带，其一端具有中心部分，设置在中心部分两侧的侧面部分和将横向部分连接到中心部分的横向部分。 中心部分比侧部突出得更远。 电线连接焊盘集中在穿过中心部分和横向部分的线上。 导体沿条的长度布置。 导体的端部分别在不同的焊盘处终止。 终端在侧面上的焊盘处的导体沿着条的外边缘安装，并且终止于中心部分上的焊盘的导体沿着带的中心布置。 结果，导体导向每个部分而不通过其它部分上的焊盘。 每个横向部分具有双向反向弯曲，其将焊盘放置在从中心部分上的焊盘行旁边排成一行的侧向部分上。 带的端部位于磁头组件的凹部中。 磁头绕组直接连接到焊盘。

公开(公告)号：US3447847A

公开(公告)日：1969-06-03

申请号：US3447847D

申请日：1967-05-12

Applicant: BURROUGHS CORP

Inventor： STANSELL ALPHEUS F ,  BILLAWALA SHAHBUDDIN A

IPC: F16J15/42 ,  F16C1/24 ,  F16C33/78 ,  F16J15/54

CPC classification number: F16J15/42

公开(公告)号：US3320599A

公开(公告)日：1967-05-16

申请号：US28637463

申请日：1963-06-07

Applicant: BURROUGHS CORP

Inventor： BILLAWALA SHAHBUDDIN A

IPC: G11B5/49 ,  G11B5/60

CPC classification number: G11B5/4969 ,  G11B5/6005