Patent US3081086A successfully refreshed from Google Patents.
EP0242597A2
Expired / Lapsed
EP
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Micro mechanical actuation of a transducer head on a slider
Assignee: International Business Machines Corp
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Filing: 1987-03-20
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Granted: —
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Expires: 2007-03-20
Abstract
Abstract A micro-mechanical actuated transducer head on an air bearing slider is disclosed herein. The transducer head (1) is made to move relative to the slider assembly (2) by the incorporation of an actuating material (3) intermediately to the slider assembly and head. The actuating material (3) can be: electromechanical, piezoelectric, electrostrictive, thermal, pneumatic, or hydraulic. The actuating material can be incorporated either integral to the head/slider assembly or made to bridge the slider to head attachment. With the incorporation of said actuatable material, said head can be moved micro-mechanically relative to said slider effecting relative and controllable motion either horizontally and/or vertically.
Inventors
- 👤 John Cocke
- 👤 Vijayeshwar Das Khanna
- 👤 Celia Elizabeth Yeack-Scranton
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 02:34
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/48; G11B5/54; G11B5/55; G11B5/5521; G11B5/5552; G11B21/00; G11B21/02; G11B21/12; G11B21/16; G11B21/20; G11B21/21; G11B33/00; G11B33/10; G11B5/58; G11B5/60; G11B5/6005; G11B7/00; G11B7/08; G11B7/09; G11B7/0925; G11B7/0937; G11B7/12; G11B7/122
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
101 words
In a system for the transfer of information to and from a storage medium by transducer head wherein said heads are attached to an air bearing slider assembly such that a suspension arm and said slider maintains said head a predetermined fly height over the storage medium, the improvement to said slider head assembly comprising: the incorporation of electromechanicl actuatable materials intermediately to said slider and head such that by actuation of said material said transducer head can be made to move relative to the slider effecting relative and controllable motion of the head element with respect to the slider body.
Claim 2
Dependent Claim
101 words
In a system for the transfer of information to and from a storage medium by transducer head wherein said heads are attached to an air bearing slider assembly such that a suspension arm and said slider maintains said head a predetermined fly height over the storage medium, the improvement to said slider head assembly comprising: the incorporation of electromechanicl actuatable materials intermediately to said slider and head such that by actuation of said material said transducer head can be made to move relative to the slider effecting relative and controllable motion of the head element with respect to the slider body.
Claim 3
Dependent Claim
37 words
Apparatus according to Claim 1 wherein said transducer head is a magnetic or optical recording head for the transfer of information to and from a moving magnetic disk, or to and from an optical storage medium respectively.
Claim 4
Dependent Claim
25 words
Apparatus according to Claim 1 or 2 wherein the motion of said transducer is in a vertical and/or horizontal plane relative to the slider body.
Claim 5
Dependent Claim
28 words
Apparatus according to Claim 1, 2 or 3 wherein the electromechanical actuatable materials is selected from the group consisting of: piezoelectric, electrorestrictive, hydraulic, pneumatic or thermally actuatable materials.
Claim 6
Dependent Claim
29 words
Apparatus according to Claim 1,2,3 or 4 wherein the electromechanical actuatable material is a laminate of a piezoelectric material bridging and connecting the slider to the transducer head assembly.
Claim 7
Dependent Claim
24 words
Apparatus according to Claim 5 wherein the slider further comprises a leading edge transducer located on the opposite to disk side of said slider.
Claim 8
Dependent Claim
40 words
Apparatus according to Claim 6 wherein the slider further comprises a trailing edge transducer located on the opposite top disk side of slider, said trailing edge transducer integral to and part of piezoelectric laminate bridging said head to said slider.
Claim 9
Dependent Claim
27 words
Apparatus according to Claim 7 wherein said head comprises a capacitive sensor and a contact sensor for determining the fluctuatuion and height respectively of said transducer head.
Claim 10
Dependent Claim
69 words
Apparatus for accelerated wear testing of a magnetic recording disk, comprising: means for simulating the geometry weight and material properties of a head slider assembly and at least one electromechanical means located intermediately to said slider and said transducer means such that by actuation of said electromechanical means said head can be maintained at near contact or contact fly height while maintaining the slider at another predetermined fly height.
Claim 11
Dependent Claim
69 words
Apparatus for accelerated wear testing of a magnetic recording disk, comprising: means for simulating the geometry weight and material properties of a head slider assembly and at least one electromechanical means located intermediately to said slider and said transducer means such that by actuation of said electromechanical means said head can be maintained at near contact or contact fly height while maintaining the slider at another predetermined fly height.
References Cited (Backward Citations)
No citation records indexed.
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