公开(公告)号：US6023396A

公开(公告)日：2000-02-08

申请号：US996647

申请日：1997-12-23

申请人： Kaynam Chun ,  Gregory A. Orton ,  Larry A. Price

发明人： Kaynam Chun ,  Gregory A. Orton ,  Larry A. Price

IPC分类号： G11B5/187 ,  G11B5/53 ,  G11B15/62

CPC分类号： G11B15/62 ,  G11B5/1871 ,  G11B5/53

摘要： Improved magnetic tip designs attain low spacing loss and enhance the channel output signal while extending head life. One embodiment includes a relatively flat tape contacting surface whose outer edges are modified to provide a tape contacting surface of dumbbell or bow-tie shape, that is, a shape which is narrower at its center near the magnetic gap and wider at its front and rear ends. The desired shape for the tape contacting surface is attained by shaving or beveling the edges of the tip at a relatively sharp angle to remove more material along the top of the curvature of the head near the gap than at the front and rear of the tape contacting surface. This allows air to bleed from under the tape as the head tip travels past the tape. In another embodiment the desired shape is attained by polishing and/or grinding the edges of the tip at a controlled angle as small as 1.0 degree to remove sufficient material to create the desired bow-tie shaped tape contacting surface. Either embodiment may be further modified to define an air knife surface at the leading edge of the tip which reduces the effect of an air shock wave impacting the front of the tip as it initially reaches an operative relationship or "read" position with respect to the tape.

摘要翻译： 改进的磁头设计获得低间隔损耗，并增强通道输出信号，同时延长头的寿命。 一个实施例包括相对扁平的带接触表面，其外边缘被修改以提供哑铃或蝴蝶结形状的带接触表面，即，在其中心附近靠近磁隙的形状较窄的形状，并且其前后更宽 结束。 胶带接触表面的所需形状是通过以相对尖锐的角度剃刮或斜切尖端的边缘来实现的，以沿着间隙的曲率顶部沿着带的前后方向去除更多的材料， 表面。 这样当头尖穿过磁带时，这就允许空气从磁带下方排出。 在另一个实施例中，通过以小至1.0度的受控角度抛光和/或研磨尖端的边缘来获得所需的形状，以去除足够的材料以产生所需的蝴蝶形带状接触表面。 可以进一步修改任一实施例以在尖端的前缘限定气刀表面，这降低了在尖端的前端碰撞的空气冲击波的影响，因为其最初达到相对于操作关系的操作关系或“读取”位置 胶带。

公开(公告)号：US4520414A

公开(公告)日：1985-05-28

申请号：US429909

申请日：1982-09-30

申请人： Stanley M. Latimer ,  Gregory A. Orton

发明人： Stanley M. Latimer ,  Gregory A. Orton

IPC分类号： G11B5/105 ,  G11B5/127 ,  G11B5/147 ,  G11B5/23 ,  G11B5/265 ,  G11B5/29 ,  G11B5/12

CPC分类号： G11B5/232 ,  G11B5/105 ,  G11B5/1272 ,  G11B5/1475 ,  G11B5/2651 ,  G11B5/295 ,  Y10T29/49055

摘要： A magnetic transducer assembly having separate core portions with keyways provided therein. The core portions are assembled to form a substantially closed magnetic circuit defining a transducing gap. The keyways form recesses which are contiguous with a transducer inner space provided by the assembled cores. The inner space and recesses are filled with a non-magnetic bonding material. The resulting bond improves the mechanical coupling between the core portions.

摘要翻译： 一种具有分离的芯部的磁换能器组件，其中设有键槽。 芯部分被组装以形成限定换能间隙的基本封闭的磁路。 键槽形成与由组装的芯提供的换能器内部空间相邻的凹部。 内部空间和凹部填充有非磁性粘合材料。 所产生的粘结改善了芯部之间的机械耦合。

公开(公告)号：US4996620A

公开(公告)日：1991-02-26

申请号：US434670

申请日：1989-11-09

申请人： Gregory A. Orton

发明人： Gregory A. Orton

IPC分类号： G11B5/147 ,  G11B5/265

CPC分类号： G11B5/265 ,  G11B5/147

摘要： A magnetic transducer of the erasing type, in which the coil is pre-wound to achieve greater manufacturing economy; and in which for the same reason, and also for electromagnetic operating efficiency, the core is laminated with each lamination being of one-piece fabrication. However, the single transducing gap in the core is too small to permit threading the coil thereon. Therefore, the core is formed of flexible material so that the gap can be enlarged to accept the coil during assembly. Alternatively, the core can be fabricated initially with an enlarged gap, and the flexible core is then bent to provide a desired gap length after the coil is assembled thereon. A variational form of the invention has two erase gaps and one record-play gap with a separate coil therefor.

摘要翻译： 一种擦除型磁传感器，其中线圈被预缠绕以实现更大的制造经济性; 并且由于相同的原因，并且对于电磁操作效率，芯是层叠的，每个层压是一体式制造的。 然而，芯中的单个换能间隙太小而不能使线圈螺纹穿过。 因此，芯由柔性材料形成，使得间隙可以扩大以在组装期间接受线圈。 或者，可以最初以更大的间隙制造芯，然后将柔性芯弯曲以在线圈组装在其上之后提供期望的间隙长度。 本发明的变体形式具有两个擦除间隙和一个记录间隙，其中一个单独的线圈。

公开(公告)号：US4894736A

公开(公告)日：1990-01-16

申请号：US116110

申请日：1987-10-30

申请人： Gregory A. Orton

发明人： Gregory A. Orton

IPC分类号： G11B5/11 ,  G11B5/127 ,  G11B5/147 ,  G11B5/23 ,  G11B5/265

CPC分类号： G11B5/147 ,  G11B5/265

摘要： A magnetic transducer of the erasing type, in which the coil is pre-wound to achieve greater manufacturing economy; and in which for the same reason, and also for electromagnetic operating efficiency, the core is laminated with each lamination being of one-piece fabrication. However, the single transducing gap in the core is too small to permit threading the coil thereon. Therefore, the core is formed of flexible material so that the gap can be enlarged to accept the coil during assembly. Alternatively, the core can be fabricated initially with an enlarged gap, and the flexible core is then bent to provide a desired gap length after the coil is assembled thereon. A variational form of the invention has two erase gaps and one record-play gap with a separate coil therefor.