Patent US4966609A successfully refreshed from Google Patents.
US4966609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conformable abrasive article
Assignee: RBX Industries Inc
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Filing: 1989-04-07
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Granted: 1990-10-30
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Expires: 2009-04-07
Abstract
Abstract A flexible abrasive article for cleaning, polishing or smoothing objects which is resistant to absorption of liquid and capable of conforming to the shape of the object. The article comprises a flexible resilient closed cell polyvinyl chloride foam substrate having upper and lower surfaces with a reinforcing textile layer and abrasive particulate matter adhered to at least one surface. The reinforcing textile layer may be buried within the foam substrate with abrasive particulate adhered to one or both surfaces of the substrate. Or the textilforcing textile layer and abrasive particulate matter adhered to at least one surface. The reinforcing textile layer may be buried within the foam substrate with abrasive particulate adhered to one or both surfaces of the substrate. Or the textile layer may be adhered to one surface and the particulate matter adhered to the other. In addition, the article may be laminated to a thermoformable rigid sheet to produce shaped tools.
Inventors
- 👤 Kevin M. Callinan
- 👤 James P. Enniss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:51
CPC Classifications
B; B24; B24D; B24D11/00
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
60 words
A flexible abrasive article for cleaning, polishing or smoothing of surfaces comprising a flexible, liquid resistant closed cell thermoplastic polyvinylchloride polyolefin or polyurethane foam substrate which is resistant to absorption or liquids and is capable of conforming to the shape of the irregular surface of an object, said substrate having abrasive particulate matter adhered to at least one surface thereof.
Claim 2
Dependent Claim
60 words
A flexible abrasive article for cleaning, polishing or smoothing of surfaces comprising a flexible, liquid resistant closed cell thermoplastic polyvinylchloride polyolefin or polyurethane foam substrate which is resistant to absorption or liquids and is capable of conforming to the shape of the irregular surface of an object, said substrate having abrasive particulate matter adhered to at least one surface thereof.
Claim 3
Dependent Claim
37 words
The article of claim 1 wherein said foam substrate further comprises at least one layer of a soft flexible adhesive for adhering said abrasive particulate matter thereto without detrimentally affecting the flexibility and conformability of the substrate.
Claim 4
Dependent Claim
13 words
The article of claim 2 wherein said adhesive is a pressure sensitive adhesive.
Claim 5
Dependent Claim
26 words
The article of claim 3 wherein said abrasive particulate matter is adhered to said pressure sensitive adhesive prior to the drying and curing of said adhesive.
Claim 6
Dependent Claim
26 words
The article material of claim 3 wherein said abrasive particulate matter is adhered to said pressure sensitive adhesive after the drying and curing of said adhesive.
Claim 7
Dependent Claim
20 words
The article of claim 1 wherein said abrasive particulate matter is adhered to more than one surface of said substrate.
Claim 8
Dependent Claim
24 words
The article of claim 1 wherein said abrasive particulate matter is incorporated into an adhesive binder which is subsequently coated onto said foam substrate.
Claim 9
Dependent Claim
24 words
The article of claim 1 further comprising a reinforcement layer adhered to said substrate on a surface opposite that of said abrasive particulate matter.
Claim 10
Dependent Claim
18 words
The article of claim 8 wherein said reinforcement layer is a textile fabric or a rigid thermoplastic sheet.
Claim 11
Dependent Claim
37 words
The article of claim 8 wherein said foam substrate is a sheet having upper and lower surfaces and having said abrasive particulate matter adhered to said upper surface and said reinforcement layer adhered to said lower surface.
Claim 12
Dependent Claim
12 words
The article of claim 10 wherein said sheet comprises a continuous belt.
Claim 13
Dependent Claim
24 words
The article of claim 1 further comprising a reinforcing textile layer within said foam substrate with particulate matter on surface of said foam substrate.
Claim 14
Dependent Claim
27 words
The article of claim 1 which further comprises a rigid support for said foam substrate and attached to a surface opposite that which contains said particulate matter.
Claim 15
Dependent Claim
24 words
The article of claim 13 wherein said substrate and said support are thermoformed to conform to the shape of the surface to be cleaned.
Claim 16
Dependent Claim
76 words
A flexible abrasive article for cleaning, polishing and smoothing surfaces comprising a flexible, resilient closed cell polyvinyl chloride foam substrate which is resistant to absorption of liquids and capable of conforming to the shape of an irregular surface of an object, said substrate being in the form of a sheet having upper and lower surfaces; abrasive particulate matter adhered to at least one surface of said substrate; and a textile layer for reinforcement of said article.
Claim 17
Dependent Claim
76 words
A flexible abrasive article for cleaning, polishing and smoothing surfaces comprising a flexible, resilient closed cell polyvinyl chloride foam substrate which is resistant to absorption of liquids and capable of conforming to the shape of an irregular surface of an object, said substrate being in the form of a sheet having upper and lower surfaces; abrasive particulate matter adhered to at least one surface of said substrate; and a textile layer for reinforcement of said article.
Claim 18
Dependent Claim
23 words
The abrasive article of claim 15 wherein said textile layer and said abrasive particulate matter are adhered to opposite surfaces of said foam.
Claim 19
Dependent Claim
27 words
The abrasive article of claim 15 wherein said textile layer is within said foam substrate and said particulate matter is included on both surfaces of said foam.
Claim 20
Dependent Claim
13 words
The article of claim 16 wherein said abrasive article comprises a continuous belt.
Claim 21
Dependent Claim
31 words
The article of claim 15 wherein said substrate further comprises at least one layer of a soft flexible pressure sensitive adhesive for adhering said abrasive particulate matter to said foam substrate.
Claim 22
Dependent Claim
27 words
The particle of claim 15 wherein said abrasive particulate matter is incorporated into an adhesive binder which is subsequently coated onto one surface of said foam substrate.
Claim 23
Dependent Claim
79 words
An abrasive article for cleaning, polishing and smoothing surfaces comprising a flexible, resilient closed cell polyvinyl chloride foam substrate which is resistant to absorption of liquids and capable of conforming to the shape of an irregular surface of an object, said substrate having upper and lower surfaces; a rigid sheet backing layer adhered to one of said surfaces of said substrate; and abrasive particulate matter adhered to the other surface; wherein said foam and said backing layer are thermoformed.
Claim 24
Dependent Claim
79 words
An abrasive article for cleaning, polishing and smoothing surfaces comprising a flexible, resilient closed cell polyvinyl chloride foam substrate which is resistant to absorption of liquids and capable of conforming to the shape of an irregular surface of an object, said substrate having upper and lower surfaces; a rigid sheet backing layer adhered to one of said surfaces of said substrate; and abrasive particulate matter adhered to the other surface; wherein said foam and said backing layer are thermoformed.
Claim 25
Dependent Claim
23 words
The abrasive article of claim 21 wherein said thermoformed shape mirrors the contour of the surface to be cleaned polished, ground or smoothed.
Claim 26
Dependent Claim
15 words
The abrasive article of claim 21 further comprising means for attachment to a peripheral device.
Claim 27
Dependent Claim
17 words
The abrasive article of claim 23 wherein said peripheral device is a polishing, grinding or smoothing machine.
References Cited (Backward Citations)
DE145013C
Cited
US2446183A
Cited
US2780533A
Cited
US2650158A
Cited
US2804729A
Cited
US3021649A
Cited
US3075222A
Cited
US3094735A
Cited
US3230672A
Cited
US3284963A
Cited
US3229425A
Cited
US3401490A
Cited
US3428405A
Cited
US4038047A
Cited
US3701703A
Cited
US3653859A
Cited
US3777444A
Cited
US4111666A
Cited
US4240807A
Cited
GB1597455A
Cited
EP0004454A2
Cited
US4202139A
Cited
US4255164A
Cited
US4355489A
Cited
GB2113241A
Cited
GB2114925A
Cited
US4459987A
Cited
US4606154A
Cited
US4510641A
Cited
US4665580A
Cited
US4576612A
Cited
US4581287A
Cited
US4629473A
Cited
US4714644A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-10-29 | 1994-04-30 | 1994-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-29 | 1998-04-30 | 1998-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-29 | 2002-04-30 | 2002-10-30 | $7700.00 | Window Closed / Lapsed |