公开(公告)号：US5021913A

公开(公告)日：1991-06-04

申请号：US342040

申请日：1989-04-24

申请人： Kenneth Overland ,  Robert Lackowski

发明人： Kenneth Overland ,  Robert Lackowski

IPC分类号： G11B23/03

CPC分类号： G11B23/0308

摘要： A shutter for covering the head window opening in a protective case that encases a flexible disk is manufactured from thinner and less expensive material and is made smaller in order to result in significant cost savings. The shutters are manufactured so as to form a band of connected shutters. The band of connected shutters is then wound to form a wound roll of shutters that are not susceptible to damage as a result of repeated contact with other shutters. Adjacent shutters can be connected to one another by strips of connecting material arranged in various manners.

摘要翻译： 用于覆盖包围软盘的保护壳中的头部窗口的快门由更薄且更便宜的材料制成并且被制造得更小以便显着地节省成本。 制造百叶窗以形成连接的百叶窗带。 然后连接的百叶窗的带缠绕以形成由于与其它百叶窗重复接触而不易受损伤的快门的卷绕卷。 相邻百叶窗可以通过以各种方式布置的连接材料的条带彼此连接。

公开(公告)号：US5299754A

公开(公告)日：1994-04-05

申请号：US857505

申请日：1992-03-25

申请人： Robert Lackowski

发明人： Robert Lackowski

IPC分类号： G11B23/037 ,  G11B23/107 ,  B65H75/18

CPC分类号： G11B23/037 ,  G11B23/107

摘要： An insert that is to be mounted on a hub of a spool positioned in a magnetic tape cartridge for permitting the spool to be attracted to the magnetic element of a computer drive mechanism includes a circular ferromagnetic disk having oppositely positioned first and second planar surfaces. The disk is provided with a centrally positioned through hole, and a plurality of securing through holes for permitting the ferromagnetic disk to be secured to the spool hub of a magnetic tape cartridge. The disk includes an annular flange that extends around the outer periphery of the disk and axially away from the first planar surface. The ferromagnetic disk has a thickness as measured between the first and second planar surfaces that is less than 1.35 mm. The disk can also include an annular flange that surrounds the centrally positioned hole and that extends axially away from the first planar surface. Also, the disk can be provided with an annular flange that surrounds each of the securing through holes and that extends axially away from the first planar surface. Each of the annular flanges that surrounds the securing holes can have a radially inwardly directed shoulder that allows the ferromagnetic disk to be securely attached to the hub of the spool of the magnetic tape cartridge.

摘要翻译： 将被安装在位于磁带盒中的用于允许卷轴被吸引到计算机驱动机构的磁性元件的卷轴的轮毂上的插入件包括具有相对定位的第一和第二平面的圆形铁磁盘。 盘设置有中心定位的通孔，以及多个固定通孔，用于允许铁磁盘被固定到磁带盒的卷轴毂上。 圆盘包括围绕盘的外周延伸并且轴向远离第一平面的环形凸缘。 铁磁盘具有在第一和第二平面之间测量的厚度小于1.35mm。 盘还可以包括围绕中心定位的孔并且轴向延伸离开第一平面表面的环形凸缘。 此外，盘可以设置有环形凸缘，环形凸缘围绕每个固定通孔并且轴向地远离第一平面表面延伸。 围绕固定孔的每个环形凸缘可以具有径向向内的肩部，其允许铁磁盘牢固地附接到磁带盒的卷轴的毂上。

公开(公告)号：US5029035A

公开(公告)日：1991-07-02

申请号：US321096

申请日：1989-03-09

申请人： Robert Lackowski ,  Vasilios Mihalopoulos

发明人： Robert Lackowski ,  Vasilios Mihalopoulos

IPC分类号： G11B23/087

CPC分类号： G11B23/08757

摘要： A tape guide for use in a magnetic tape cassette for guiding the magnetic tape includes a cylindrical member having a slit extending along its length. The slit defines first and second edge forces that face each other. In one embodiment, a plurality of tabs are connected to the first and second edge faces of the cylindrical member and extend towards the oppositely positioned edge face. The tabs overlap one another and serve to inhibit the tape guide from becoming interlocked with another tape guide. In another embodiment, a plurality of outdented portions extend from both edge faces and each outdented portion is positioned opposite to an indented portion on the opposite edge face.

摘要翻译： 用于引导磁带的磁带盒中的磁带引导件包括具有沿其长度延伸的狭缝的圆柱形构件。 狭缝限定了彼此面对的第一和第二边缘力。 在一个实施例中，多个突片连接到圆柱形构件的第一和第二边缘面并朝向相对定位的边缘面延伸。 突片彼此重叠，用于阻止磁带引导件与另一磁带引导件互锁。 在另一个实施例中，多个外伸部分从两个边缘面延伸，并且每个外部部分与相对边缘面上的凹入部分相对定位。

公开(公告)号：US5323984A

公开(公告)日：1994-06-28

申请号：US2866

申请日：1993-01-15

申请人： Robert Lackowski

发明人： Robert Lackowski

IPC分类号： G11B23/037 ,  G11B23/107 ,  G11B23/07

CPC分类号： G11B23/037 ,  G11B23/107

摘要： An insert that is to be mounted on a hub of a spool positioned in a magnetic tape cartridge for permitting the spool to be attracted to the magnetic element of a computer drive mechanism includes a circular ferromagnetic disk having oppositely positioned upper and lower planar surfaces. The disk is provided with a centrally positioned through hole, and a plurality of recesses disposed radially outwardly of the centrally positioned through hole. Each recess is provided with a securing through hole for permitting the ferromagnetic disk to be secured to the spool hub of a magnetic tape cartridge. The disk can also include an annular flange that extends around the outer periphery of the disk and axially away from the upper surface, and an annular flange that surrounds the centrally positioned hole and extends axially away from the upper surface. Each of the recesses is defined by an inclined side wall that extends axially away from the upper surface of the disk and radially inwardly toward the longitudinal axis of the respective securing through hole.

摘要翻译： 要安装在位于磁带盒中的用于允许卷轴被吸引到计算机驱动机构的磁性元件的卷轴的轮毂上的插入件包括具有相对定位的上和下平面表面的圆形铁磁盘。 盘设置有中心定位的通孔，以及设置在中心定位的通孔的径向外侧的多个凹槽。 每个凹槽设置有固定通孔，用于允许铁磁盘被固定到磁带盒的卷轴毂上。 盘还可以包括围绕盘的外周延伸并且轴向远离上表面的环形凸缘，以及围绕中心定位的孔并且从上表面轴向延伸的环形凸缘。 每个凹部由倾斜的侧壁限定，该倾斜侧壁从盘的上表面轴向延伸并且径向向内朝向相应的固定通孔的纵向轴线。