US5341609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasive belts and their manufacture
Assignee: 3M Co
•
Filing: 1993-06-16
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Granted: 1994-08-30
•
Expires: 2013-06-16
Abstract
Abstract This invention provides a coated abrasive belt having a backing comprising a hot-melt adhesive, and a method of making the same. The splice of the endless coated abrasive belt according to the present invention has substantially the same thickness, density, and flexibility as the remainder of the belt.
Inventors
- 👤 Jan Gorsuch
- 👤 Mark R. Ennis
- 👤 Robert M. Burgess
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:00
CPC Classifications
B; B24; B24D; B24D11/00; B24D11/06
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
183 words
An endless coated abrasive belt comprising a flexible backing laminate material having a major surface and an abrasive layer attached to said major surface, said flexible backing laminate material comprising two flexible support layers and a hot-melt adhesive layer interposed between said two flexible support layers, said hot-melt adhesive layer being parallel to said major surface of said flexible backing laminate material, said flexible support layers each having a first and a second complementary end, said flexible backing laminate material being in the shape of an elongated strip having a length, a width, and said complementary ends abutted, said hot-melt adhesive layer extending the length of said belt and being continuous over said abutted ends to provide a splice, each of said first complementary ends of each of said flexible support layers being substantially coterminous with each other and said second complementary ends of said flexible support layers being substantially coterminous with each other, said coated abrasive belt being of substantially the same thickness throughout its length, and said coated abrasive belt having a width equal to said width of said elongated strip.
Claim 2
Dependent Claim
183 words
An endless coated abrasive belt comprising a flexible backing laminate material having a major surface and an abrasive layer attached to said major surface, said flexible backing laminate material comprising two flexible support layers and a hot-melt adhesive layer interposed between said two flexible support layers, said hot-melt adhesive layer being parallel to said major surface of said flexible backing laminate material, said flexible support layers each having a first and a second complementary end, said flexible backing laminate material being in the shape of an elongated strip having a length, a width, and said complementary ends abutted, said hot-melt adhesive layer extending the length of said belt and being continuous over said abutted ends to provide a splice, each of said first complementary ends of each of said flexible support layers being substantially coterminous with each other and said second complementary ends of said flexible support layers being substantially coterminous with each other, said coated abrasive belt being of substantially the same thickness throughout its length, and said coated abrasive belt having a width equal to said width of said elongated strip.
Claim 3
Dependent Claim
21 words
The coated abrasive belt according to claim 1 wherein said at least one of flexible support layers is a woven web.
Claim 4
Dependent Claim
26 words
The coated abrasive belt according to claim 1 wherein said hot-melt adhesive layer comprises a hot-melt adhesive having a melting point of at least 120° C.
Claim 5
Dependent Claim
33 words
The coated abrasive belt according to claim 1 wherein each of said first and second complementary ends have an abutting length that is at least three times the width of said elongated strip.
Claim 6
Dependent Claim
20 words
The coated abrasive belt according to claim 1 wherein each of said complementary ends has a plurality of tapered fingers.
Claim 7
Dependent Claim
21 words
The coated abrasive belt according to claim 1 wherein said first and second complementary ends of each respective layer are interlocking.
Claim 8
Dependent Claim
18 words
The coated abrasive belt according to claim 1 wherein said abrasive layer and said complementary ends are coterminous.
Claim 9
Dependent Claim
20 words
The coated abrasive belt according to claim 1 wherein said abrasive layer comprises a mesh having abrasive grain attached thereto.
Claim 10
Dependent Claim
14 words
The coated abrasive belt according to claim 8 wherein said mesh is electrically insulating.
Claim 11
Dependent Claim
21 words
The coated abrasive belt according to claim 8 wherein said abrasive grain attached to said mesh is arranged in a pattern.
Claim 12
Dependent Claim
32 words
The coated abrasive belt according to claim 1 wherein said abrasive layer comprises a mesh material having a layer of metal electrodeposited thereon and abrasive granules embedded in said layer of metal.
Claim 13
Dependent Claim
223 words
An endless coated abrasive belt comprising a flexible backing laminate material having a major surface and an abrasive layer attached to said major surface, said flexible backing laminate material comprising two flexible support layers and a hot-melt adhesive layer interposed between said two flexible supports, said hot-melt adhesive layer being parallel to said major surface of said flexible backing laminate material, said flexible support layers each having a first and a second complementary end, said flexible backing laminate material being in the shape of an elongated strip having a length, a width, and said complementary ends abutted, said hot-melt adhesive layer extending the length of said belt and being continuous over said abutted ends to provide a splice, each of said first complementary ends of each of said flexible support layers being substantially coterminous with each other and said second complementary ends of said flexible support layers being substantially coterminous with each other, said coated abrasive belt being of substantially the same thickness throughout its length, said coated abrasive belt having a width equal to said width of said elongated strip, said hot-melt adhesive layer comprising a hot-melt adhesive having a melting point of at least 120° C., an each of said first and second complementary ends having an abutting length that is at least three times the width of said elongated strip.
Claim 14
Dependent Claim
223 words
An endless coated abrasive belt comprising a flexible backing laminate material having a major surface and an abrasive layer attached to said major surface, said flexible backing laminate material comprising two flexible support layers and a hot-melt adhesive layer interposed between said two flexible supports, said hot-melt adhesive layer being parallel to said major surface of said flexible backing laminate material, said flexible support layers each having a first and a second complementary end, said flexible backing laminate material being in the shape of an elongated strip having a length, a width, and said complementary ends abutted, said hot-melt adhesive layer extending the length of said belt and being continuous over said abutted ends to provide a splice, each of said first complementary ends of each of said flexible support layers being substantially coterminous with each other and said second complementary ends of said flexible support layers being substantially coterminous with each other, said coated abrasive belt being of substantially the same thickness throughout its length, said coated abrasive belt having a width equal to said width of said elongated strip, said hot-melt adhesive layer comprising a hot-melt adhesive having a melting point of at least 120° C., an each of said first and second complementary ends having an abutting length that is at least three times the width of said elongated strip.
Claim 15
Dependent Claim
20 words
The coated abrasive belt according to claim 12 wherein each of said complementary ends have a plurality of tapered fingers.
Claim 16
Dependent Claim
18 words
The coated abrasive belt according to claim 12 wherein said abrasive layer and said complementary ends are coterminous.
Claim 17
Dependent Claim
248 words
An endless coated abrasive belt comprising a flexible backing laminate material having a major surface and an abrasive layer attached to said major surface, said flexible backing laminate material comprising two flexible support layers and a hot-melt adhesive layer interposed between said two flexible supports, said hot-melt adhesive layer being parallel to said major surface of said flexible backing laminate material, said flexible support layers each having a first and a second complementary end, said flexible backing laminate material being in the shape of an elongated strip having a length, a width, and said complementary ends abutted, said hot-melt adhesive layer extending the length of said belt and being continuous over said abutted ends to provide a splice, each of said first complementary ends of each of said flexible support layers being substantially coterminous with each other and said second complementary ends of said flexible support layers being substantially coterminous with each other, said coated abrasive belt being of substantially the same thickness throughout its length, said coated abrasive belt having a width equal to said width of said elongated strip, said hot-melt adhesive layer comprising a hot-melt adhesive having a melting point of at least 120° C., said abrasive layer comprising an electrically insulating mesh material having a layer of metal electrodeposited thereon and abrasive granules embedded in said layer of metal, and each of said first and second complementary ends having an abutting length that is at least three times the width of said elongated strip.
Claim 18
Dependent Claim
248 words
An endless coated abrasive belt comprising a flexible backing laminate material having a major surface and an abrasive layer attached to said major surface, said flexible backing laminate material comprising two flexible support layers and a hot-melt adhesive layer interposed between said two flexible supports, said hot-melt adhesive layer being parallel to said major surface of said flexible backing laminate material, said flexible support layers each having a first and a second complementary end, said flexible backing laminate material being in the shape of an elongated strip having a length, a width, and said complementary ends abutted, said hot-melt adhesive layer extending the length of said belt and being continuous over said abutted ends to provide a splice, each of said first complementary ends of each of said flexible support layers being substantially coterminous with each other and said second complementary ends of said flexible support layers being substantially coterminous with each other, said coated abrasive belt being of substantially the same thickness throughout its length, said coated abrasive belt having a width equal to said width of said elongated strip, said hot-melt adhesive layer comprising a hot-melt adhesive having a melting point of at least 120° C., said abrasive layer comprising an electrically insulating mesh material having a layer of metal electrodeposited thereon and abrasive granules embedded in said layer of metal, and each of said first and second complementary ends having an abutting length that is at least three times the width of said elongated strip.
Claim 19
Dependent Claim
21 words
The coated abrasive belt according to claim 15 wherein said abrasive grain attached to said mesh is arranged in a pattern.
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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) | 1997-08-29 | 1998-02-28 | 1998-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-08-29 | 2002-02-28 | 2002-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-08-29 | 2006-02-28 | 2006-08-30 | $7700.00 | Window Closed / Lapsed |