US20040116056A1 - Device for repairing damaged surface optical readable discs - Google Patents
Device for repairing damaged surface optical readable discs Download PDFInfo
- Publication number
- US20040116056A1 US20040116056A1 US10/472,280 US47228003A US2004116056A1 US 20040116056 A1 US20040116056 A1 US 20040116056A1 US 47228003 A US47228003 A US 47228003A US 2004116056 A1 US2004116056 A1 US 2004116056A1
- Authority
- US
- United States
- Prior art keywords
- grinding
- polishing
- damaged surface
- optical readable
- readable discs
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 16
- 238000000227 grinding Methods 0.000 claims abstract description 47
- 238000005498 polishing Methods 0.000 claims abstract description 35
- 239000000463 material Substances 0.000 claims abstract description 30
- 229920000642 polymer Polymers 0.000 claims abstract description 19
- 239000013081 microcrystal Substances 0.000 claims abstract description 9
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 6
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 5
- 239000010432 diamond Substances 0.000 claims abstract description 5
- 239000011521 glass Substances 0.000 claims abstract description 5
- 230000008439 repair process Effects 0.000 claims abstract description 5
- 239000002344 surface layer Substances 0.000 claims abstract description 5
- 239000004744 fabric Substances 0.000 description 4
- 239000004033 plastic Substances 0.000 description 3
- 229920003051 synthetic elastomer Polymers 0.000 description 3
- 239000005061 synthetic rubber Substances 0.000 description 3
- 244000286663 Ficus elastica Species 0.000 description 1
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
- B24D15/02—Hand tools or other devices for non-rotary grinding, polishing, or stropping rigid; with rigidly-supported operative surface
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/50—Reconditioning of record carriers; Cleaning of record carriers ; Carrying-off electrostatic charges
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
A device for restoring damaged surface layers of optically readable discs having a body (1) for manual repair comprising at least two grinding/polishing surfaces (2) with grinding/polishing materials of different fineness, wherein the grinding/polishing material is a polymer based material with micro crystals of diamond, glass or silicon carbide. Manual use of a grinding/polishing material that is polymer silicon carbide for restoring a damaged surface layer of optical readable discs.
Description
- The present invention relates to a device for restoring a damaged surface layer of optical readable discs, such as CD, CD-rom, DVD-discs or discs for Playstation or discs containing computer programs. Such discs usually comprise a protective layer of polymeric material.
- Optical readable discs can easily be damaged, for example be scratched, so that the information stored on the optical disc is not possible to read. Then, the disc has to be discarded. However, there is a possibility to send the damaged disc to a couple of companies in the USA that have a machine for repairing optical discs. This is very expensive and is only appropriate in particularly important cases.
- Such a known machine is disclosed in JP 08263881 A. A motor driven grinding wheel rotates against a rotating optical disc to be repaired, wherein also the optical disc is rotated with the aid of a motor. The Japanese patent application discusses how one in this manner can achieve an even grinding across the entire surface.
- Another machine is disclosed in U.S. Pat. No. 5,593,343, in which a disc to be repaired also is rotated by a motor and a motor driven grinding wheel rotates against the optical disc. In this case also supply of cutting medium is required. A similar machine is also disclosed in EP 342 359.
- All of these documents teach that high velocities between grinding wheel and disc are required in order to be able to obtain a surface that again provides perfect function of the optical readable disc, i.e. motor driven devices are required.
- Now the inventor surprisingly has shown that it is possible to manually repair damages of optical readable discs by using a special grinding cloth used by certain jewellers for grinding/polishing metal.
- The object of the present invention is to provide a device for manual repair of damaged optical readable discs. The characterising features of the invention are stated in the following claims.
- The fact that there are at least two grinding/polishing surfaces of different fineness on the device, the repair of an optical readable disc may take place in at least two stages, where the damage first is manually treated with a coarser material surface and then is polished up with a finer material surface.
- An advantage of the fact that the grinding/polishing material is polymer based is its softness that provides a damping effect when grinding/polishing. This is enhanced if the micro crystals for example are bound in or arranged on a polymer body of a crude or synthetic rubber or a non-rigid plastic. This is also enhanced if the polymer based grinding material is arranged on a grinding cloth that encloses a polymer body of a crude or synthetic rubber or non-rigid plastic. Preferably, the grinding and polishing element has a “sense of india rubber”, i.e. provides a soft counter pressure.
- The invention will now be described with reference to the accompanying drawings, in which:
- FIG. 1 shows a first embodiment of the present invention.
- FIG. 2 shows a second embodiment of the present invention.
- FIG. 3 shows a pawl arrangement to the second embodiment of the present invention.
- FIG. 4 shows a perspective view of a third embodiment of the present invention.
- FIG. 5 shows a cross-section of the third embodiment.
- FIG. 6 shows an exchangeable grinding or polishing element.
- FIG. 7 shows a cross-section of the grinding or polishing element.
- The invention consists of a
body 1 comprising at least two grinding and/orpolishing surfaces 2 with grinding/polishing materials of different fineness, wherein the grinding/polishing material is a polymer based material as a binding medium for micro crystals of diamond, glass or silicon carbide. - For example the polymer based material may be a crude or synthetic rubber or a non-rigid plastic. In a modification the micro crystals may be bound in the polymer based material at a high concentration or saturation. Alternatively, the micro crystals (plain or bound in the polymer based material) may be coated on a polymer body, for example by gluing.
- The two (or more)
surfaces 2 should take the shape ofelements 11, which are removably arranged at thebody 1 so that they can be exchanged when worn out or if different material fineness is desired in thesurfaces 2. - According to a first embodiment, see FIG. 1, the
body 1 is elongated, for example like a pencil, and is convenient to hold. Agrip surface 3 of for example rubber is preferably arranged on the body to enable a good grip between the hand and thebody 1 when in use. In the embodiment shown there are two grinding/polishing surfaces 2, one at each end of thebody 1. - In this case they take the shape of “hats” completely made of the polymer based material with micro crystals of diamond, glass or silicon carbide or consist of a carrier body covered with a cloth with the polymer based grinding material arranged on the external side. For example the hats can be secured by screwing, be kept in place by friction or be snap-in locked or be clamped by lock and clip, respectively. As realised by the skilled man the
body 1 may take any shape and the grinding and polishingsurfaces 2 may be optionally located. - According to a second embodiment of the present invention the
body 1 comprises a throughhole 4, see FIG. 2, in which the cartridges of a number (three in the figure)cartridges 5 form a queue. Eachcartridge 5 is provided with a grinding/polishing surface 2, wherein the fineness of the grinding/polishing material is different for eachcartridge 5. Thesecartridges 5 are arranged within thehole 4 in the order to be used, namely the coarsest grinding/polishing surface first and then finer and finer. - When the
first cartridge 5 has been used it is taken out of thebody 1 and is entered into the opposite end 9 of thehole 4 of thebody 1 with the end provided with the grindings/polishing surface first. As a result theremaining cartridges 5 are pushed forwards in thebody 1 until the entirefirst cartridge 5 has been inserted into thebody 1 from the opposite direction. At this stage thenext cartridge 5 projects sufficiently from thefront end 10 of thebody 1 to enable operation. - To prevent movement of the
cartridges 5 backwards in thebody 1 each cartridge may be provided with for example apawl 6, see FIG. 3, that co-operates with abevelled teeth row 7 or rail on the internal side of thehole 4 of thebody 2. When thecartridge 5 is pushed forward in thebody 1 thepawl 6 yields inwardly by obliquely forwards projectingteeth 8 and then thepawl 6 springs out again then therespective tooth 8 has been passed. If thecartridge 5 is pushed backwards thepawl 6 will abut a surface of atooth 8 which is substantially orthogonal towards the extension of theteeth row 7 and thereby prevents movement of thecartridges 5 backwards in thebody 1. When one ormore cartridges 5 have been worn out it is a simple matter to replace these. - FIGS. 4 and 5 show a third embodiment of the device according to the invention. The
body 1 comprises twocavities 12 intended to receive and retain two grinding and polishing elements 11 (see FIG. 6). Theelements 11 preferably have different degrees of fineness. These twoelements 11 are in their position of use. In addition, thebody 1 also comprises preferablycavities 13 for storing spare elements or elements with different degree of fineness from the two that are arranged in thecavities 12. Theelements 11 are retained by snap-in action betweenindentations 14 on the end sides of thecavities projections 14 on the end sides of theelements 11. - FIGS. 6 and 7 show a grinding or
polishing element 11 according to the invention. Theelement 11 has agrinding surface 2 and aholder part 16. Theholder part 16 is preferably provided withnotches 17 to improve the grip of theelement 11. For example, thegrinding surface 2 may comprise a supportingbody 18 covered with acloth 19 with the polymer based grinding material arranged on the external side, as appears from the cross-section of FIG. 7, or the entire portion placed in theholder part 16 may consist of the polymer based grinding material or alternatively the micro crystals (plain or bound in the polymer based material) may be coated on thepolymer body 18. - When using the device according the invention the damaged optical disc is held by one hand and the damage is treated by the device held by the other hand. First, the surface comprising the coarsest grinding/polishing material is used until the damage has disappeared and the area is matted. Then the surface comprising the finer grinding/polishing material is used to polish up the matted disc surface. Of course, the process may be carried out in for example three or more stages if desired. In such a case a device with at least three or more different surfaces of grinding/polishing material may be used.
Claims (6)
1. A device for restoring damaged surface layers of optical readable discs, characterised by a body (1) for manual repair comprising at least two grinding/polishing surfaces (2) with grinding/polishing material of different fineness, wherein the grinding/polishing material is a polymer based material with micro crystals of diamond, glass or silicon carbide.
2. A device according to claim 1 , wherein the grinding/polishing surfaces (2) are removably attached to the body (2).
3. A device according to claims 1 or 2, wherein the grinding/polishing surfaces (2) take the shape of grinding/polishing hats.
4. A device according to any of the presiding claims, wherein the device takes the shape of an elongated body (1) with the first and second grinding/polishing surfaces (2) are arranged at opposite ends.
5. A device according to claim 1 or 2, wherein the body (1) comprises a hole (4) in which at least two cartridges (5) are arranged, and each cartridge is provided with a grinding/polishing surface of grinding/polishing materials of different fineness.
6. Manual use of a grinding/polishing material that is polymer based and comprises micro crystals of diamond, glass or silicon carbide for restoring damaged surface layers of optical readable discs.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0101020-6 | 2001-03-22 | ||
SE0101020A SE518800C2 (en) | 2001-03-22 | 2001-03-22 | Device for restoring damaged surface layer of optical discs |
PCT/SE2002/000508 WO2002077995A1 (en) | 2001-03-22 | 2002-03-18 | Device for repairing damaged surface optical readable discs |
Publications (1)
Publication Number | Publication Date |
---|---|
US20040116056A1 true US20040116056A1 (en) | 2004-06-17 |
Family
ID=20283492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/472,280 Abandoned US20040116056A1 (en) | 2001-03-22 | 2002-03-18 | Device for repairing damaged surface optical readable discs |
Country Status (4)
Country | Link |
---|---|
US (1) | US20040116056A1 (en) |
EP (1) | EP1380032A1 (en) |
SE (1) | SE518800C2 (en) |
WO (1) | WO2002077995A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6991524B1 (en) | 2000-07-07 | 2006-01-31 | Disc Go Technologies Inc. | Method and apparatus for reconditioning digital discs |
US20160303699A1 (en) * | 2015-04-14 | 2016-10-20 | Darex, Llc | Cutting Edge with Microscopically Sized Channels to Enhance Cutting Performance |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3688450A (en) * | 1971-05-12 | 1972-09-05 | Edwin Brockman | Paint and enamel touch-up tool |
US5099618A (en) * | 1988-05-14 | 1992-03-31 | Harald Schmid | Method for repairing damaged digital recording disks |
US5593343A (en) * | 1995-04-03 | 1997-01-14 | Bauer; Jason | Apparatus for reconditioning digital recording discs |
US5762077A (en) * | 1997-07-14 | 1998-06-09 | Griffiths, Jr.; Valton E. | Apparatus for manicuring nails |
US5964650A (en) * | 1997-03-10 | 1999-10-12 | Digital Innovations, L.L.C. | Method and apparatus for repairing optical discs |
US6322430B1 (en) * | 1997-06-20 | 2001-11-27 | Michael S. Kennedy | Apparatus for resurfacing compact discs |
US6699110B2 (en) * | 2001-12-31 | 2004-03-02 | Jean Chin Chu Lee | Apparatus for repairing the surface of an optical disc |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6279967A (en) * | 1985-09-30 | 1987-04-13 | Sumitomo Chem Co Ltd | Diamond contained rubber abrasive |
JPH0221477A (en) * | 1988-07-07 | 1990-01-24 | Canon Inc | Repair tool for optical recording carrier |
RU2038944C1 (en) * | 1992-05-19 | 1995-07-09 | Сергей Анатольевич Герасимов | Diamond tool for finishing treatment and method of its production |
JPH10172265A (en) * | 1996-12-06 | 1998-06-26 | Kazuo Ogawa | Optical disc flaw recovering apparatus |
-
2001
- 2001-03-22 SE SE0101020A patent/SE518800C2/en not_active IP Right Cessation
-
2002
- 2002-03-18 EP EP02708874A patent/EP1380032A1/en not_active Withdrawn
- 2002-03-18 US US10/472,280 patent/US20040116056A1/en not_active Abandoned
- 2002-03-18 WO PCT/SE2002/000508 patent/WO2002077995A1/en not_active Application Discontinuation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3688450A (en) * | 1971-05-12 | 1972-09-05 | Edwin Brockman | Paint and enamel touch-up tool |
US5099618A (en) * | 1988-05-14 | 1992-03-31 | Harald Schmid | Method for repairing damaged digital recording disks |
US5593343A (en) * | 1995-04-03 | 1997-01-14 | Bauer; Jason | Apparatus for reconditioning digital recording discs |
US5964650A (en) * | 1997-03-10 | 1999-10-12 | Digital Innovations, L.L.C. | Method and apparatus for repairing optical discs |
US6322430B1 (en) * | 1997-06-20 | 2001-11-27 | Michael S. Kennedy | Apparatus for resurfacing compact discs |
US5762077A (en) * | 1997-07-14 | 1998-06-09 | Griffiths, Jr.; Valton E. | Apparatus for manicuring nails |
US6699110B2 (en) * | 2001-12-31 | 2004-03-02 | Jean Chin Chu Lee | Apparatus for repairing the surface of an optical disc |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6991524B1 (en) | 2000-07-07 | 2006-01-31 | Disc Go Technologies Inc. | Method and apparatus for reconditioning digital discs |
US20070010167A1 (en) * | 2000-07-07 | 2007-01-11 | Cooper Ivan G | Method and apparatus for reconditioning digital discs |
US7357696B2 (en) | 2000-07-07 | 2008-04-15 | Disc Go Technologies, Inc. | Method and apparatus for reconditioning digital discs |
US20160303699A1 (en) * | 2015-04-14 | 2016-10-20 | Darex, Llc | Cutting Edge with Microscopically Sized Channels to Enhance Cutting Performance |
US9975260B2 (en) * | 2015-04-14 | 2018-05-22 | Darex, Llc | Cutting edge with microscopically sized channels to enhance cutting performance |
Also Published As
Publication number | Publication date |
---|---|
SE518800C2 (en) | 2002-11-26 |
SE0101020D0 (en) | 2001-03-22 |
WO2002077995A1 (en) | 2002-10-03 |
EP1380032A1 (en) | 2004-01-14 |
SE0101020L (en) | 2002-09-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE |