Dynamic magnetic information storage or retrieval – Head – Head surface structure
Reexamination Certificate
2001-01-25
2003-06-10
Letscher, George J. (Department: 2653)
Dynamic magnetic information storage or retrieval
Head
Head surface structure
Reexamination Certificate
active
06577470
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to magnetic recording technology, and more particularly to a method and system for providing a tape head subassembly that is more stable and easier to assemble.
BACKGROUND OF THE INVENTION
Tape subassemblies are used in tape drives for writing to and reading from tape media.
FIG. 1
depicts a conventional tape head subassembly
10
in which the individual components have been separated. The conventional tape head subassembly
10
is used in writing to or reading from a tape in a conventional tape drive. The conventional tape head subassembly
10
includes the device
12
, conventional wear bars
14
A and
14
B, conventional tie bar
16
and conventional body
18
. The conventional tape head subassembly thus includes five different parts. The device
12
is actually used for writing to and reading from the media (not shown). Thus, the device
12
typically includes an active rail (not explicitly shown) is which includes poles for writing to the media. A cable (not shown) including is typically coupled with the device
12
for providing electrical signals to and receiving electrical signals from the device
12
. The conventional wear bars
14
A and
14
B, the conventional tie bar
16
are composed of an AlTiC (aluminum titanium carbide) material. The conventional body
18
is ceramic. The conventional body
18
is used as a base for the conventional tape head subassembly
10
. The conventional wear bars
14
A and
14
B are used to protect the device
12
from wear due to contact with the tape (not shown) with which the conventional tape head subassembly
10
is used. The conventional tie bar
16
is used to stabilize the conventional tape head subassembly
10
. Although some conventional subassemblies (not shown) are fabricated without a conventional tie bar
16
, such conventional subassemblies may have significant problems due to micromovements of components of the subassemblies. In addition, the conventional tie bar
16
acts as an outrigger rail. Thus, the tape (not shown) runs over the conventional tie bar
16
(acting as an outrigger rail) and over the active rail. Thus, the conventional tie bar
16
, when acting as an outrigger rail, aids in stabilizing the conventional tape head subassembly
10
.
Although the conventional tape head subassembly
10
functions, one of ordinary skill in the art will readily realize that it has drawbacks. In order to complete the conventional tape head subassembly
10
, the device
12
, the conventional wear bars
14
A and
14
B, the conventional tie bar
16
and the conventional body
18
are epoxy bonded together. Thus, assembly of the conventional tape head subassembly
10
is time consuming and relatively difficult because it requires that five components be precisely put together. In addition, because there is a relatively large number of components being bonded together, the components
12
,
14
A,
14
B,
16
and
18
are more likely to move with respect to each other. As a result, performance and reliability of the conventional tape head subassembly is adversely affected.
Accordingly, what is needed is a system and method for providing a tape head subassembly that is simpler to assemble and less subject to micromovements. The present invention addresses such a need.
SUMMARY OF THE INVENTION
The present invention provides a method and system for providing a tape head subassembly. The method and system comprise providing a device, a left head block segment and a right head block segment. The device is for writing to a media. The left head block segment includes an integrated outrigger rail and has a first space. The right head block segment includes a first wear bar and a second wear bar and has a second space therein. The first and second wear bars are integrated as part of the right head block segment. The second space separating the first wear bar from the second wear bar and is configured to fit the device. The tape head subassembly is formed by bonding the device, as the right head block segment and the left head block segment such that the device fits into the first space and the second space.
According to the system and method disclosed herein, the present invention provides a tape head subassembly which is structurally more stable and that is simpler to assemble.
REFERENCES:
patent: 5237476 (1993-08-01), Bischoff et al.
patent: 5276578 (1994-01-01), Kato et al.
Letscher George J.
Read-Rite Corporation
Sawyer Law Group LLP
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