US5280467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical disk cartridge assembly
Assignee: HP Inc
•
Filing: 1991-05-08
•
Granted: 1994-01-18
•
Expires: 2011-05-08
Abstract
Abstract An optical disk cartridge assembly including an optical disk for storing data in machine readable form; a disk casing for rotatably supporting the optical disk; and a reader door slideably mounted on the casing for selectively covering and uncovering an opening therein; the casing having a surface resistivity of less than 10 6 ohms/sq. Also disclosed is an information storage assembly including such an optical disk cartridge assembly and further including an optical disk drive; a cartridge storage cell and a mechanized cartridge handling assembly for moving the cartridge assembly between the cartridge storage cell and the optical disk drive; each portion of the optical disk drive, cartridge storage cell, and mechanized cartridge handling assembly which comes into contact with the casing having a surface resistivity of less than 10 4 ohms/sq. Methods for producing the optical disk cartridge assembly and information storage assembly are also disclosed.
Inventors
- 👤 Mark E. Wanger
- 👤 Robert D. Proctor
- 👤 Thomas C. Oliver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:33
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/03; G11B23/0326; G11B17/00; G11B17/22; G11B17/225; G11B23/0301; G11B23/0313; G11B23/0315
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
180 words
An information storage assembly comprising: a) an optical disk cartridge assembly comprising: i) optical disk means for storing data thereon in machine readable form; ii) casing means for rotatably supporting said optical disk means therewithin and for shielding said optical disk means from physical contact with other objects; and iii) door means slideably mounted on said casing means for selectively covering and uncovering an opening therein; b) an optical disk reading means for slideably receiving said optical disk cartridge assembly therein and for reading data from said optical disk means; c) cartridge storage cell means for storing said optical disk cartridge assembly during periods when said cartridge assembly is not inserted in said optical disk reading means; d) mechanized cartridge handling means for engaging said cartridge assembly and for moving said cartridge assembly between said cartridge storage cell means and said optical disk reading means; each portion of said optical disk reading means, cartridge storage cell means, and mechanized cartridge handling means which comes into contact with said casing means having a surface resistivity of less than 10 4 ohms/sq.
Claim 2
Dependent Claim
180 words
An information storage assembly comprising: a) an optical disk cartridge assembly comprising: i) optical disk means for storing data thereon in machine readable form; ii) casing means for rotatably supporting said optical disk means therewithin and for shielding said optical disk means from physical contact with other objects; and iii) door means slideably mounted on said casing means for selectively covering and uncovering an opening therein; b) an optical disk reading means for slideably receiving said optical disk cartridge assembly therein and for reading data from said optical disk means; c) cartridge storage cell means for storing said optical disk cartridge assembly during periods when said cartridge assembly is not inserted in said optical disk reading means; d) mechanized cartridge handling means for engaging said cartridge assembly and for moving said cartridge assembly between said cartridge storage cell means and said optical disk reading means; each portion of said optical disk reading means, cartridge storage cell means, and mechanized cartridge handling means which comes into contact with said casing means having a surface resistivity of less than 10 4 ohms/sq.
Claim 3
Dependent Claim
40 words
The invention of claim 1, each portion of said optical disk reading means, cartridge storage cell means, and mechanized cartridge handling means which comes into contact with said casing means having a surface resistivity of less than 10 2 ohms/sq.
Claim 4
Dependent Claim
67 words
The invention of claim 1 said casing means having a wear factor associated with sliding contact with said door means and with sliding contact with any engaged surface of said optical disk reading means, said cartridge storage cell means, and said mechanized cartridge handling means of less than 350×10 -10 in 3 -min/ft-lb-hr. and said casing means having a surface resistivity of less than 10 6 ohms/sq.
Claim 5
Dependent Claim
17 words
The invention of claim 3, said casing means being constructed from a thermoplastic material impregnated with carbon.
Claim 6
Dependent Claim
21 words
The invention of claim 4, said thermoplastic material being polycarbonate, the amount of impregnating carbon being at least 30% by weight.
Claim 7
Dependent Claim
26 words
The invention of claim 4 wherein said step of constructing a cartridge casing comprises using a casing material which is at least 10% by weight carbon.
Claim 8
Dependent Claim
26 words
The invention of claim 4 wherein said step of constructing a cartridge casing comprises using a casing material which is at least 30% by weight carbon.
Claim 9
Independent Claim
249 words
A method of constructing an information storage assembly of the type including: a) an optical disk cartridge assembly comprising: i) optical disk means for storing data thereon in machine readable form; ii) casing means for rotatably supporting said optical disk means therewithin and for shielding said optical disk means from physical contact with other objects; and iii) door means slideably mounted on said casing means for selectively covering and uncovering an opening therein; b) an optical disk reading means for slideably receiving said optical disk cartridge assembly therein and for reading data from said optical disk means; c) cartridge storage cell means for storing said optical disk cartridge assembly during periods when said cartridge assembly is not inserted in said optical disk reading means; d) mechanized cartridge handling means for engaging said cartridge assembly and for moving said cartridge assembly between said cartridge storage cell means and said optical disk reading means comprising the steps of: a) constructing each portion of said optical disk reading means which comes into contact with said casing means from a material having a surface resistivity of less than 10 4 ohms/sq; b) constructing each portion of said cartridge storage cell means which comes into contact with said casing means from a material having a surface resistivity of less than 10 4 ohms/sq; c) constructing each portion of said mechanized cartridge handling means which comes into contact with said casing means from a material having a surface resistivity of less than 10 4 ohms/sq.
Claim 10
Independent Claim
249 words
A method of constructing an information storage assembly of the type including: a) an optical disk cartridge assembly comprising: i) optical disk means for storing data thereon in machine readable form; ii) casing means for rotatably supporting said optical disk means therewithin and for shielding said optical disk means from physical contact with other objects; and iii) door means slideably mounted on said casing means for selectively covering and uncovering an opening therein; b) an optical disk reading means for slideably receiving said optical disk cartridge assembly therein and for reading data from said optical disk means; c) cartridge storage cell means for storing said optical disk cartridge assembly during periods when said cartridge assembly is not inserted in said optical disk reading means; d) mechanized cartridge handling means for engaging said cartridge assembly and for moving said cartridge assembly between said cartridge storage cell means and said optical disk reading means comprising the steps of: a) constructing each portion of said optical disk reading means which comes into contact with said casing means from a material having a surface resistivity of less than 10 4 ohms/sq; b) constructing each portion of said cartridge storage cell means which comes into contact with said casing means from a material having a surface resistivity of less than 10 4 ohms/sq; c) constructing each portion of said mechanized cartridge handling means which comes into contact with said casing means from a material having a surface resistivity of less than 10 4 ohms/sq.
Claim 11
Dependent Claim
45 words
The method of claim 8 comprising: constructing each portion of said optical disk reading means, cartridge storage cell means, and mechanized cartridge handling means which comes into contact with said casing means from a material having a surface resistivity of less than 10 2 ohms/sq.
Claim 12
Dependent Claim
69 words
The invention of claim 9 comprising constructing said casing means from a material having a wear factor associated with sliding contact with said door means and with sliding contact with any engaged surface of said optical disk reading means, said cartridge storage cell means, and said mechanized cartridge handling means of less than 350×10 -10 in 3 -min/ft-lb-hr and having a surface resistivity of less than 10 6 ohms/sq.
References Cited (Backward Citations)
US4755901A
Cited
US5010536A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-01-17 | 1997-07-19 | 1998-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-01-17 | 2001-07-19 | 2002-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-01-17 | 2005-07-19 | 2006-01-18 | $7700.00 | Window Closed / Lapsed |