Write enable device

Details Write enable device Write enable device

1997-04-21

1998-10-27

Cao, Allen T.

Dynamic magnetic information storage or retrieval

Record medium

In container

G11B 2302

Patent

active

058285342

ABSTRACT:
A write enabling device 10 includes a hexahedron-shaped planar member or a planar member fabricated from resilient material. Write enabling device 10 is sized to be snugly and tightly accepted and retained by recording safety cavity 16 of a recording medium such as a tape cassette. When write enabling device 10 is inserted into cavity 16, the writing (recording) feature of a recording machine is either enabled or disabled depending upon the recording machine. In conventional recording machine, patching up of cavity 16 recording enabled. For better retention in cavity 16, many different kinds of methods are used, for example--resilience of material used, use of groove(s), friction enhancing ridges, etc. For ease with removal from cavity 16, bevel 22 is used. When tail side 38 is pressed upon, a void with no support (in the form of bevel 22) creates the required leverage action necessary to pop out head side 36 for removal of write enabling device 10 from cavity 16. Flange extension 26 is also used to prevent incorrect installation into cavity 16.

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patent: 5418672 (1995-05-01), Tischler
patent: 5539600 (1996-07-01), Lee et al.

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