Patent US4675975A successfully refreshed from Google Patents.
Patent US4374404A successfully refreshed from Google Patents.
US4374404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-abrasive magnetic head cleaning system
Assignee: INNOVATIVE COMPUTER PRODUCTS A CORP OF
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Filing: 1980-08-25
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Granted: 1983-02-15
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Expires: 2000-08-25
Abstract
Abstract A cleaning system for flexible disk equipment or the like. The system includes a cleaning disk made of an absorbent and porous fibrous material which has an area substantially saturated with a liquid cleaning solution. The cleaning disk is rotatably supported within a flat jacket. The jacket includes opposed openings on either side so as to expose a portion of the cleaning disk to enable the disk to come into contact with a magnetic head or heads. At least one of the openings is enlarged to expose a relatively large portion of the surface of the cleaning disk, so as to facilitate complete saturation of an area of the cleaning disk with a liquid cleaning solution while leaving a portion of the cleaning disk dry. The jacket containing the disk is placed within a flexible disk system which rotates the saturated disk, thus causing the magnetic head(s) to be cleaned in a non-abrasive fashion with a wet, dry, wet action. An improved jacket for use with a thickened cleaning disk is also disclosed.
Inventors
- 👤 C. Paul Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:50
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/03; G11B23/033; G11B23/0332; G11B5/00; G11B5/41
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
100 words
A method for cleaning magnetic heads in a disk system employing a jacket that rotatably supports a cleaning disk within its interior and has a first opening therein and has a perforated portion in opposition to the opening; the steps comprising: removing the perforated portion to form a second opening; saturating a portion of said cleaning disk with a cleaning solution via said first opening; bringing said cleaning disk into contact with two magnetic heads to be cleaned; and rotating said cleaning disk to alternately contact said head with a wet portion and a dry portion of said cleaning disk.
Claim 2
Independent Claim
100 words
A method for cleaning magnetic heads in a disk system employing a jacket that rotatably supports a cleaning disk within its interior and has a first opening therein and has a perforated portion in opposition to the opening; the steps comprising: removing the perforated portion to form a second opening; saturating a portion of said cleaning disk with a cleaning solution via said first opening; bringing said cleaning disk into contact with two magnetic heads to be cleaned; and rotating said cleaning disk to alternately contact said head with a wet portion and a dry portion of said cleaning disk.
Claim 3
Dependent Claim
23 words
The method defined in claim 1 wherein the cleaning solution employed evaporates in less than three minutes when the cleaning disk is rotated.
Claim 4
Dependent Claim
36 words
The method defined in claim 1 wherein the material employed for the cleaning disk is an absorbent and porous material, said porous nature of the material enabling foreign particles to be collected by said cleaning disk.
Claim 5
Dependent Claim
24 words
The method defined in claim 1 wherein between 1/8 to 1/2 of the cleaning area of the cleaning disk is saturated with cleaning solution.
Claim 6
Independent Claim
121 words
A device for cleaning a magnetic head in flexible disk systems, comprising: a cleaning disk made of an absorbent and porous material, and adapted to be saturated with a liquid cleaning fluid; and a substantially flat jacket rotatably supporting said cleaning disk within its interior, said jacket including two sides, a first side having at least one opening for exposing said cleaning disk to a first magnetic head of a flexible disk system and facilitating saturation of a substantial portion of the cleaning disk while the disk is in the jacket, the other side having a perforated portion that may be removed to form an opening for exposing said cleaning disk to a second magnetic head of a flexible disk system.
Claim 7
Independent Claim
121 words
A device for cleaning a magnetic head in flexible disk systems, comprising: a cleaning disk made of an absorbent and porous material, and adapted to be saturated with a liquid cleaning fluid; and a substantially flat jacket rotatably supporting said cleaning disk within its interior, said jacket including two sides, a first side having at least one opening for exposing said cleaning disk to a first magnetic head of a flexible disk system and facilitating saturation of a substantial portion of the cleaning disk while the disk is in the jacket, the other side having a perforated portion that may be removed to form an opening for exposing said cleaning disk to a second magnetic head of a flexible disk system.
Claim 8
Dependent Claim
18 words
The device of claim 5 wherein said absorbent material is a light color, lint free and fibrous material.
Claim 9
Dependent Claim
47 words
The device of claim 5 wherein there is one opening in the first side of the jacket, said opening exposing approximately one-quarter of the surface of said cleaning disk, and wherein said opening formed by removing the perforated portion is in opposed position to said first opening.
Claim 10
Dependent Claim
19 words
The device of claim 7 wherein said opening formed by removing the perforation is an elongated thin radial opening.
Claim 11
Independent Claim
93 words
A method for cleaning magnetic heads in a disk system employing a jacket that rotatably supports a cleaning disk within its interior and has a first opening therein and has a perforated portion in opposition to the opening; the steps comprising: removing the perforated portion to form a second opening; saturating said cleaning disk with a cleaning solution; bringing said cleaning disk into contact with said magnetic heads to be cleaned; and rotating said cleaning disk to alternately contact said heads with a wet portion and a dry portion of said cleaning disk.
Claim 12
Independent Claim
93 words
A method for cleaning magnetic heads in a disk system employing a jacket that rotatably supports a cleaning disk within its interior and has a first opening therein and has a perforated portion in opposition to the opening; the steps comprising: removing the perforated portion to form a second opening; saturating said cleaning disk with a cleaning solution; bringing said cleaning disk into contact with said magnetic heads to be cleaned; and rotating said cleaning disk to alternately contact said heads with a wet portion and a dry portion of said cleaning disk.
Claim 13
Independent Claim
93 words
A method for cleaning magnetic heads in a disk system employing a jacket that rotatably supports a cleaning disk within its interior and has a first opening therein and has a perforated portion in opposition to the opening; the steps comprising: saturating said cleaning disk with a cleaning solution; removing the perforated portion to form a second opening; bringing said cleaning disk into contact with said magnetic heads to be cleaned; and rotating said cleaning disk to alternately contact said heads with a wet portion and a dry portion of said cleaning disk.
Claim 14
Independent Claim
93 words
A method for cleaning magnetic heads in a disk system employing a jacket that rotatably supports a cleaning disk within its interior and has a first opening therein and has a perforated portion in opposition to the opening; the steps comprising: saturating said cleaning disk with a cleaning solution; removing the perforated portion to form a second opening; bringing said cleaning disk into contact with said magnetic heads to be cleaned; and rotating said cleaning disk to alternately contact said heads with a wet portion and a dry portion of said cleaning disk.
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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) | 1986-02-14 | 1986-08-16 | 1987-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-14 | 1990-08-16 | 1991-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-14 | 1994-08-16 | 1995-02-15 | $7700.00 | Window Closed / Lapsed |