Patent US5677022A successfully refreshed from Google Patents.
US5677022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatographic roller mask
Assignee: Eastman Kodak Co
•
Filing: 1996-12-05
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Granted: 1997-10-14
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Expires: 2016-12-05
Abstract
Abstract This invention provides a roller mask for use as part of a transfer roller in an electrostatographic machine consisting of a dimensionally stable base, polymeric material adhered to the base, and means for mounting the base onto a roller core.
Inventors
- 👤 Robert Edward Zeman
- 👤 David Richard Jackson
- 👤 II William Bernard Vreeland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:42
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/75; G03G15/751; G03G15/14; G03G15/16; G03G15/1605; G03G15/162; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2053; Y; Y10; Y10T; Y10T428/00; Y10T428/13
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
115 words
A roller mask for use as part of a roller in an electrostatographic machine comprising: a critically dimensionally stable, substantially incompressible base having first and second surfaces and having a Young's Modulus greater than 4.8×10 4 MPa and a thermal coefficient of expansion at 100° C. less than 200 μm/m°C., polymeric material adhered to said first surface of said base, said polymeric material having a Young's Modulus greater than 1 MPa and a smooth surface finish of less than 100μ inches, and means for removably mounting said base onto the outside surface of a roller core so that said second surface of said roller mask is next to said outside surface of said roller core.
Claim 2
Dependent Claim
115 words
A roller mask for use as part of a roller in an electrostatographic machine comprising: a critically dimensionally stable, substantially incompressible base having first and second surfaces and having a Young's Modulus greater than 4.8×10 4 MPa and a thermal coefficient of expansion at 100° C. less than 200 μm/m°C., polymeric material adhered to said first surface of said base, said polymeric material having a Young's Modulus greater than 1 MPa and a smooth surface finish of less than 100μ inches, and means for removably mounting said base onto the outside surface of a roller core so that said second surface of said roller mask is next to said outside surface of said roller core.
Claim 3
Dependent Claim
11 words
The roller mask of claim 1, wherein said base is cylindrical.
Claim 4
Dependent Claim
11 words
The roller mask of claim 1, wherein said base is rectangular.
Claim 5
Dependent Claim
16 words
The roller mask of claim 1, wherein said roller mask is an intermediate transfer roller mask.
Claim 6
Dependent Claim
11 words
The roller mask of claim 1, wherein said base comprises metal.
Claim 7
Dependent Claim
21 words
The roller mask of claim 1, wherein said base comprises a material having a Youngs Modulus greater than 4.8×10 4 MPa.
Claim 8
Dependent Claim
12 words
The roller mask of claim 1, wherein said base comprises polymeric material.
Claim 9
Dependent Claim
52 words
A method of forming the roller mask of claim 1 comprising the steps of: inserting a critically dimensionally stable base into a centrifugal apparatus; adding polymeric material to said centrifugal apparatus; centrifuging until said polymeric material is cast to produce a roller mask; and removing said roller mask from said centrifugal apparatus.
Claim 10
Dependent Claim
80 words
A roller for use within an electrostatographic machine comprising: a core having an outside surface, a mask removably mounted onto said outside surface of said core, said mask comprising a critically dimensionally stable base having first and second surfaces, a polymeric material adhered to said first surface of said base, and means for removably mounting said mask onto said outside surface of said core whereby said second surface of said base is next to said outside surface of said core.
Claim 11
Dependent Claim
80 words
A roller for use within an electrostatographic machine comprising: a core having an outside surface, a mask removably mounted onto said outside surface of said core, said mask comprising a critically dimensionally stable base having first and second surfaces, a polymeric material adhered to said first surface of said base, and means for removably mounting said mask onto said outside surface of said core whereby said second surface of said base is next to said outside surface of said core.
Claim 12
Dependent Claim
23 words
The roller of claim 9 wherein said core comprises said means for removably mounting said mask onto said outside surface of said core.
Claim 13
Dependent Claim
32 words
The roller of claim 9 wherein said core further comprises a gully and said means for removably mounting said mask onto said core are located in said gully and on said mask.
Claim 14
Dependent Claim
62 words
The roller of claim 11 wherein said means for removably mounting said mask onto said core located in said gully comprise clamping mechanisms comprising strips of holes, said means located on said mask comprise holes, and said means for removably mounting said mask onto said core further comprises screws in said holes in said mask and said holes in said clamping mechanism.
Claim 15
Dependent Claim
19 words
The roller of claim 9 wherein said polymeric material adhered to said first surface of said base comprises polyurethane.
Claim 16
Dependent Claim
19 words
The roller of claim 9 wherein said polymeric material adhered to said first surface of said base comprises fluoroelastomer.
Claim 17
Dependent Claim
20 words
The roller of claim 9 wherein said polymeric material adhered to said first surface of said base comprises silicone rubber.
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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) | 2000-10-13 | 2001-04-14 | 2001-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-10-13 | 2005-04-14 | 2005-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-10-13 | 2009-04-14 | 2009-10-14 | $7700.00 | Window Closed / Lapsed |