Patent US3855622A successfully refreshed from Google Patents.
US3855622A
Expired / Lapsed
US
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Apparatus for loading and unloading a head assembly in a data storage system
Assignee: Siemens Corp
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Filing: 1973-01-04
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Granted: 1974-12-17
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Expires: 1993-01-04
Abstract
Abstract A transducer is loaded and unloaded into and out of a flying height position with respect to a rotating disc in a data storage system. A carriage is moveable with respect to the rotating disc and a head having the transducer secured thereto is mounted on the carriage. A head displacement mechanism moveable with respect to the carriage contacts the head mechanism and forces it to a loaded or unloaded position independent of the position of the head with respect to the disc.
Inventors
- 👤 P Truscelli
- 👤 R Provasnik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:20
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/48; G11B5/54; G11B5/55; G11B5/5521; G11B5/58; G11B5/60; G11B5/6005
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
129 words
Apparatus for loading and unloading into and out of a flying height position respectively, at least one transducer in relation to a rotating disc in a data storage system, comprising: a. head means having said transducer fixedly secured thereto and having an inclined ramp; b. carriage means moveably mounted to said data storage system for moving said head means in a longitudinal direction with respect to said rotating disc; and, c. driving means moveably secured to said carriage means, said driving means having pin means slideably engaging said inclined ramp for moving said pin means reversibly in said longitudinal direction for displacing said head means into and out of said loaded and unloaded positions in relation to said rotating disc independent of said longitudinal movement of said head means.
Claim 2
Dependent Claim
129 words
Apparatus for loading and unloading into and out of a flying height position respectively, at least one transducer in relation to a rotating disc in a data storage system, comprising: a. head means having said transducer fixedly secured thereto and having an inclined ramp; b. carriage means moveably mounted to said data storage system for moving said head means in a longitudinal direction with respect to said rotating disc; and, c. driving means moveably secured to said carriage means, said driving means having pin means slideably engaging said inclined ramp for moving said pin means reversibly in said longitudinal direction for displacing said head means into and out of said loaded and unloaded positions in relation to said rotating disc independent of said longitudinal movement of said head means.
Claim 3
Dependent Claim
42 words
The loading and unloading apparatus of claim 1 where said driving means moves said head means to and from said disc into said loaded and unloaded positions respectively in a direction substantially normal to a plane of rotation of said rotating disc.
Claim 4
Dependent Claim
42 words
The loading and unloading apparatus of claim 2 where said driving means is moveably mounted to said carriage means, said driving means being moveable with respect to said carriage means in a direction substantially coincident with said carriage means direction of movement.
Claim 5
Dependent Claim
58 words
The loading and unloading apparatus of claim 3 where said pin means slideably engages said inclined ramp on a 1) first surface of said head means for forcing said transducer to said loaded position with respect to said rotating disc, and on a 2) second surface of said head means for forcing said transducer to said unloaded position.
Claim 6
Dependent Claim
37 words
The loading and unloading apparatus of claim 4 where said first and second head surfaces are extended in said longitudinal direction and are parallely displaced, said first and second head surfaces being joined in one piece formation.
Claim 7
Dependent Claim
24 words
The loading and unloading apparatus as recited in claim 5 where said first head surface forms on elongated channel guide within said head means.
Claim 8
Dependent Claim
59 words
The loading and unloading apparatus as recited in claim 1 where said pin means comprises at least one pin member and said driving means includes air cylinder means rigidly connected to said pin member for reversibly driving said pin member from a first to a second head means surface, said surfaces being in parallel displacement each to the other.
Claim 9
Dependent Claim
50 words
The loading and unloading apparatus as recited in claim 7 where said air cylinder means includes: a. an air cylinder secured to said carriage means; b. an air cylinder piston rod moveable in said longitudinal direction and connected on opposing ends thereof to said air cylinder and said pin member.
Claim 10
Dependent Claim
39 words
The loading and unloading apparatus as recited in claim 8 where said pin member is forced to said first surface when high pressure air is applied to said air cylinder thereby forcing said head means into said loaded position.
Claim 11
Dependent Claim
45 words
The loading and unloading apparatus as recited in claim 9 including means for driving said pin member from said first surface to said second surface when said high pressure air is removed from said air cylinder thereby forcing said head means into said unloaded position.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-16 | 1978-06-17 | 1978-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-16 | 1982-06-17 | 1982-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-16 | 1986-06-17 | 1986-12-17 | $7700.00 | Window Closed / Lapsed |